Return-path: Received: from mms2.broadcom.com ([216.31.210.18]:2084 "EHLO mms2.broadcom.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932370Ab1GNV3t (ORCPT ); Thu, 14 Jul 2011 17:29:49 -0400 From: "Franky Lin" To: gregkh@suse.de cc: devel@linuxdriverproject.org, linux-wireless@vger.kernel.org Subject: [PATCH 03/35] staging: brcm80211: shuffled sections in main.c Date: Thu, 14 Jul 2011 14:28:59 -0700 Message-ID: <1310678971-28952-4-git-send-email-frankyl@broadcom.com> (sfid-20110714_232957_648441_02FE0518) In-Reply-To: <1310678971-28952-1-git-send-email-frankyl@broadcom.com> References: <1310678971-28952-1-git-send-email-frankyl@broadcom.com> MIME-Version: 1.0 Content-Type: text/plain Sender: linux-wireless-owner@vger.kernel.org List-ID: From: Roland Vossen Moved bmac functions above 'common' functions invoking them. This facilitates merging these functions in a later commit. Also declared locally used functions static. Signed-off-by: Roland Vossen Reviewed-by: Arend van Spriel --- drivers/staging/brcm80211/brcmsmac/main.c | 2250 ++++++++++++++--------------- 1 files changed, 1092 insertions(+), 1158 deletions(-) diff --git a/drivers/staging/brcm80211/brcmsmac/main.c b/drivers/staging/brcm80211/brcmsmac/main.c index 8399bf3..bd3d5f0 100644 --- a/drivers/staging/brcm80211/brcmsmac/main.c +++ b/drivers/staging/brcm80211/brcmsmac/main.c @@ -271,7 +271,6 @@ struct brcms_b_state { /* local prototypes */ static void brcms_b_clkctl_clk(struct brcms_hardware *wlc, uint mode); -static void brcms_b_coreinit(struct brcms_c_info *wlc); /* used by wlc_wakeucode_init() */ static void brcms_c_write_inits(struct brcms_hardware *wlc_hw, @@ -281,13 +280,6 @@ static void brcms_ucode_write(struct brcms_hardware *wlc_hw, const u32 ucode[], static void brcms_ucode_download(struct brcms_hardware *wlc); static void brcms_c_ucode_txant_set(struct brcms_hardware *wlc_hw); -/* used by brcms_c_dpc() */ -static bool brcms_b_dotxstatus(struct brcms_hardware *wlc, - struct tx_status *txs, u32 s2); -static bool brcms_b_txstatus(struct brcms_hardware *wlc, bool bound, - bool *fatal); -static bool brcms_b_recv(struct brcms_hardware *wlc_hw, uint fifo, bool bound); - /* used by brcms_c_down() */ static void brcms_c_flushqueues(struct brcms_c_info *wlc); @@ -296,8 +288,6 @@ static void brcms_c_mctrl_reset(struct brcms_hardware *wlc_hw); static void brcms_b_corerev_fifofixup(struct brcms_hardware *wlc_hw); static bool brcms_b_tx_fifo_suspended(struct brcms_hardware *wlc_hw, uint tx_fifo); -static void brcms_b_tx_fifo_suspend(struct brcms_hardware *wlc_hw, - uint tx_fifo); static void brcms_b_tx_fifo_resume(struct brcms_hardware *wlc_hw, uint tx_fifo); @@ -305,66 +295,38 @@ static void brcms_b_tx_fifo_resume(struct brcms_hardware *wlc_hw, struct brcms_b_state; -extern int brcms_b_attach(struct brcms_c_info *wlc, u16 vendor, u16 device, +static int brcms_b_attach(struct brcms_c_info *wlc, u16 vendor, u16 device, uint unit, bool piomode, void *regsva, uint bustype, void *btparam); -extern int brcms_b_detach(struct brcms_c_info *wlc); -extern void brcms_b_watchdog(void *arg); /* up/down, reset, clk */ -extern void brcms_b_reset(struct brcms_hardware *wlc_hw); -extern void brcms_b_init(struct brcms_hardware *wlc_hw, chanspec_t chanspec, - bool mute); -extern int brcms_b_up_prep(struct brcms_hardware *wlc_hw); -extern int brcms_b_up_finish(struct brcms_hardware *wlc_hw); -extern int brcms_b_bmac_down_prep(struct brcms_hardware *wlc_hw); -extern int brcms_b_down_finish(struct brcms_hardware *wlc_hw); - -extern int brcms_b_xmtfifo_sz_get(struct brcms_hardware *wlc_hw, uint fifo, - uint *blocks); -extern u16 brcms_b_mhf_get(struct brcms_hardware *wlc_hw, u8 idx, int bands); -extern int brcms_b_state_get(struct brcms_hardware *wlc_hw, +static void brcms_b_reset(struct brcms_hardware *wlc_hw); +static int brcms_b_state_get(struct brcms_hardware *wlc_hw, struct brcms_b_state *state); -extern void brcms_b_copyfrom_vars(struct brcms_hardware *wlc_hw, char **buf, +static void brcms_b_copyfrom_vars(struct brcms_hardware *wlc_hw, char **buf, uint *len); -extern void brcms_b_hw_etheraddr(struct brcms_hardware *wlc_hw, +static void brcms_b_hw_etheraddr(struct brcms_hardware *wlc_hw, u8 *ea); -extern bool brcms_b_radio_read_hwdisabled(struct brcms_hardware *wlc_hw); -extern void brcms_b_set_shortslot(struct brcms_hardware *wlc_hw, - bool shortslot); - -extern void brcms_b_wait_for_wake(struct brcms_hardware *wlc_hw); +static bool brcms_b_radio_read_hwdisabled(struct brcms_hardware *wlc_hw); +static void brcms_b_wait_for_wake(struct brcms_hardware *wlc_hw); -extern void brcms_b_set_addrmatch(struct brcms_hardware *wlc_hw, +static void brcms_b_set_addrmatch(struct brcms_hardware *wlc_hw, int match_reg_offset, const u8 *addr); -extern void brcms_b_write_hw_bcntemplates(struct brcms_hardware *wlc_hw, - void *bcn, int len, bool both); +static void brcms_b_set_cwmin(struct brcms_hardware *wlc_hw, u16 newmin); +static void brcms_b_set_cwmax(struct brcms_hardware *wlc_hw, u16 newmax); -extern void brcms_b_read_tsf(struct brcms_hardware *wlc_hw, u32 *tsf_l_ptr, - u32 *tsf_h_ptr); -extern void brcms_b_set_cwmin(struct brcms_hardware *wlc_hw, u16 newmin); -extern void brcms_b_set_cwmax(struct brcms_hardware *wlc_hw, u16 newmax); - -extern void brcms_b_retrylimit_upd(struct brcms_hardware *wlc_hw, u16 SRL, +static void brcms_b_retrylimit_upd(struct brcms_hardware *wlc_hw, u16 SRL, u16 LRL); -extern void brcms_b_fifoerrors(struct brcms_hardware *wlc_hw); - +static void brcms_b_fifoerrors(struct brcms_hardware *wlc_hw); -/* API for BMAC driver (e.g. wlc_phy.c etc) */ - -extern void brcms_b_pllreq(struct brcms_hardware *wlc_hw, bool set, +static void brcms_b_pllreq(struct brcms_hardware *wlc_hw, bool set, mbool req_bit); -extern void brcms_b_hw_up(struct brcms_hardware *wlc_hw); -extern void brcms_b_antsel_set(struct brcms_hardware *wlc_hw, +static void brcms_b_antsel_set(struct brcms_hardware *wlc_hw, u32 antsel_avail); - - - - static int brcms_b_bandtype(struct brcms_hardware *wlc_hw); static void brcms_b_info_init(struct brcms_hardware *wlc_hw); static void brcms_b_xtal(struct brcms_hardware *wlc_hw, bool want); @@ -546,19 +508,6 @@ static const char fifo_names[6][0]; static struct brcms_c_info *wlc_info_dbg = (struct brcms_c_info *) (NULL); #endif -/* === Low Level functions === */ - -void brcms_b_set_shortslot(struct brcms_hardware *wlc_hw, bool shortslot) -{ - wlc_hw->shortslot = shortslot; - - if (BAND_2G(brcms_b_bandtype(wlc_hw)) && wlc_hw->up) { - brcms_c_suspend_mac_and_wait(wlc_hw->wlc); - brcms_b_update_slot_timing(wlc_hw, shortslot); - brcms_c_enable_mac(wlc_hw->wlc); - } -} - /* * Update the slot timing for standard 11b/g (20us slots) * or shortslot 11g (9us slots) @@ -687,6 +636,81 @@ brcms_b_recv(struct brcms_hardware *wlc_hw, uint fifo, bool bound) return n >= bound_limit; } +static bool +brcms_b_dotxstatus(struct brcms_hardware *wlc_hw, struct tx_status *txs, + u32 s2) +{ + /* discard intermediate indications for ucode with one legitimate case: + * e.g. if "useRTS" is set. ucode did a successful rts/cts exchange, but the subsequent + * tx of DATA failed. so it will start rts/cts from the beginning (resetting the rts + * transmission count) + */ + if (!(txs->status & TX_STATUS_AMPDU) + && (txs->status & TX_STATUS_INTERMEDIATE)) { + return false; + } + + return brcms_c_dotxstatus(wlc_hw->wlc, txs, s2); +} + +/* process tx completion events in BMAC + * Return true if more tx status need to be processed. false otherwise. + */ +static bool +brcms_b_txstatus(struct brcms_hardware *wlc_hw, bool bound, bool *fatal) +{ + bool morepending = false; + struct brcms_c_info *wlc = wlc_hw->wlc; + d11regs_t *regs; + struct tx_status txstatus, *txs; + u32 s1, s2; + uint n = 0; + /* + * Param 'max_tx_num' indicates max. # tx status to process before + * break out. + */ + uint max_tx_num = bound ? wlc->pub->tunables->txsbnd : -1; + + BCMMSG(wlc->wiphy, "wl%d\n", wlc_hw->unit); + + txs = &txstatus; + regs = wlc_hw->regs; + while (!(*fatal) + && (s1 = R_REG(®s->frmtxstatus)) & TXS_V) { + + if (s1 == 0xffffffff) { + wiphy_err(wlc->wiphy, "wl%d: %s: dead chip\n", + wlc_hw->unit, __func__); + return morepending; + } + + s2 = R_REG(®s->frmtxstatus2); + + txs->status = s1 & TXS_STATUS_MASK; + txs->frameid = (s1 & TXS_FID_MASK) >> TXS_FID_SHIFT; + txs->sequence = s2 & TXS_SEQ_MASK; + txs->phyerr = (s2 & TXS_PTX_MASK) >> TXS_PTX_SHIFT; + txs->lasttxtime = 0; + + *fatal = brcms_b_dotxstatus(wlc_hw, txs, s2); + + /* !give others some time to run! */ + if (++n >= max_tx_num) + break; + } + + if (*fatal) + return 0; + + if (n >= max_tx_num) + morepending = true; + + if (!pktq_empty(&wlc->pkt_queue->q)) + brcms_c_send_q(wlc); + + return morepending; +} + /* second-level interrupt processing * Return true if another dpc needs to be re-scheduled. false otherwise. * Param 'bounded' indicates if applicable loops should be bounded. @@ -790,73 +814,6 @@ bool brcms_c_dpc(struct brcms_c_info *wlc, bool bounded) return wlc->macintstatus != 0; } -/* common low-level watchdog code */ -void brcms_b_watchdog(void *arg) -{ - struct brcms_c_info *wlc = (struct brcms_c_info *) arg; - struct brcms_hardware *wlc_hw = wlc->hw; - - BCMMSG(wlc->wiphy, "wl%d\n", wlc_hw->unit); - - if (!wlc_hw->up) - return; - - /* increment second count */ - wlc_hw->now++; - - /* Check for FIFO error interrupts */ - brcms_b_fifoerrors(wlc_hw); - - /* make sure RX dma has buffers */ - dma_rxfill(wlc->hw->di[RX_FIFO]); - - wlc_phy_watchdog(wlc_hw->band->pi); -} - -void -brcms_b_set_chanspec(struct brcms_hardware *wlc_hw, chanspec_t chanspec, - bool mute, struct txpwr_limits *txpwr) -{ - uint bandunit; - - BCMMSG(wlc_hw->wlc->wiphy, "wl%d: 0x%x\n", wlc_hw->unit, chanspec); - - wlc_hw->chanspec = chanspec; - - /* Switch bands if necessary */ - if (NBANDS_HW(wlc_hw) > 1) { - bandunit = CHSPEC_BANDUNIT(chanspec); - if (wlc_hw->band->bandunit != bandunit) { - /* brcms_b_setband disables other bandunit, - * use light band switch if not up yet - */ - if (wlc_hw->up) { - wlc_phy_chanspec_radio_set(wlc_hw-> - bandstate[bandunit]-> - pi, chanspec); - brcms_b_setband(wlc_hw, bandunit, chanspec); - } else { - brcms_c_setxband(wlc_hw, bandunit); - } - } - } - - wlc_phy_initcal_enable(wlc_hw->band->pi, !mute); - - if (!wlc_hw->up) { - if (wlc_hw->clk) - wlc_phy_txpower_limit_set(wlc_hw->band->pi, txpwr, - chanspec); - wlc_phy_chanspec_radio_set(wlc_hw->band->pi, chanspec); - } else { - wlc_phy_chanspec_set(wlc_hw->band->pi, chanspec); - wlc_phy_txpower_limit_set(wlc_hw->band->pi, txpwr, chanspec); - - /* Update muting of the channel */ - brcms_b_mute(wlc_hw, mute, 0); - } -} - int brcms_b_state_get(struct brcms_hardware *wlc_hw, struct brcms_b_state *state) { @@ -974,356 +931,6 @@ static void brcms_b_detach_dmapio(struct brcms_hardware *wlc_hw) } } -/* low level attach - * run backplane attach, init nvram - * run phy attach - * initialize software state for each core and band - * put the whole chip in reset(driver down state), no clock - */ -int brcms_b_attach(struct brcms_c_info *wlc, u16 vendor, u16 device, uint unit, - bool piomode, void *regsva, uint bustype, void *btparam) -{ - struct brcms_hardware *wlc_hw; - d11regs_t *regs; - char *macaddr = NULL; - char *vars; - uint err = 0; - uint j; - bool wme = false; - struct shared_phy_params sha_params; - struct wiphy *wiphy = wlc->wiphy; - - BCMMSG(wlc->wiphy, "wl%d: vendor 0x%x device 0x%x\n", unit, vendor, - device); - - wme = true; - - wlc_hw = wlc->hw; - wlc_hw->wlc = wlc; - wlc_hw->unit = unit; - wlc_hw->band = wlc_hw->bandstate[0]; - wlc_hw->_piomode = piomode; - - /* populate struct brcms_hardware with default values */ - brcms_b_info_init(wlc_hw); - - /* - * Do the hardware portion of the attach. - * Also initialize software state that depends on the particular hardware - * we are running. - */ - wlc_hw->sih = ai_attach(regsva, bustype, btparam, - &wlc_hw->vars, &wlc_hw->vars_size); - if (wlc_hw->sih == NULL) { - wiphy_err(wiphy, "wl%d: brcms_b_attach: si_attach failed\n", - unit); - err = 11; - goto fail; - } - vars = wlc_hw->vars; - - /* - * Get vendid/devid nvram overwrites, which could be different - * than those the BIOS recognizes for devices on PCMCIA_BUS, - * SDIO_BUS, and SROMless devices on PCI_BUS. - */ -#ifdef BCMBUSTYPE - bustype = BCMBUSTYPE; -#endif - if (bustype != SI_BUS) { - char *var; - - var = getvar(vars, "vendid"); - if (var) { - vendor = (u16) simple_strtoul(var, NULL, 0); - wiphy_err(wiphy, "Overriding vendor id = 0x%x\n", - vendor); - } - var = getvar(vars, "devid"); - if (var) { - u16 devid = (u16) simple_strtoul(var, NULL, 0); - if (devid != 0xffff) { - device = devid; - wiphy_err(wiphy, "Overriding device id = 0x%x" - "\n", device); - } - } - - /* verify again the device is supported */ - if (!brcms_c_chipmatch(vendor, device)) { - wiphy_err(wiphy, "wl%d: brcms_b_attach: Unsupported " - "vendor/device (0x%x/0x%x)\n", - unit, vendor, device); - err = 12; - goto fail; - } - } - - wlc_hw->vendorid = vendor; - wlc_hw->deviceid = device; - - /* set bar0 window to point at D11 core */ - wlc_hw->regs = (d11regs_t *) ai_setcore(wlc_hw->sih, D11_CORE_ID, 0); - wlc_hw->corerev = ai_corerev(wlc_hw->sih); - - regs = wlc_hw->regs; - - wlc->regs = wlc_hw->regs; - - /* validate chip, chiprev and corerev */ - if (!brcms_c_isgoodchip(wlc_hw)) { - err = 13; - goto fail; - } - - /* initialize power control registers */ - ai_clkctl_init(wlc_hw->sih); - - /* request fastclock and force fastclock for the rest of attach - * bring the d11 core out of reset. - * For PMU chips, the first wlc_clkctl_clk is no-op since core-clk is still false; - * But it will be called again inside wlc_corereset, after d11 is out of reset. - */ - brcms_b_clkctl_clk(wlc_hw, CLK_FAST); - brcms_b_corereset(wlc_hw, BRCMS_USE_COREFLAGS); - - if (!brcms_b_validate_chip_access(wlc_hw)) { - wiphy_err(wiphy, "wl%d: brcms_b_attach: validate_chip_access " - "failed\n", unit); - err = 14; - goto fail; - } - - /* get the board rev, used just below */ - j = getintvar(vars, "boardrev"); - /* promote srom boardrev of 0xFF to 1 */ - if (j == BOARDREV_PROMOTABLE) - j = BOARDREV_PROMOTED; - wlc_hw->boardrev = (u16) j; - if (!brcms_c_validboardtype(wlc_hw)) { - wiphy_err(wiphy, "wl%d: brcms_b_attach: Unsupported Broadcom " - "board type (0x%x)" " or revision level (0x%x)\n", - unit, wlc_hw->sih->boardtype, wlc_hw->boardrev); - err = 15; - goto fail; - } - wlc_hw->sromrev = (u8) getintvar(vars, "sromrev"); - wlc_hw->boardflags = (u32) getintvar(vars, "boardflags"); - wlc_hw->boardflags2 = (u32) getintvar(vars, "boardflags2"); - - if (wlc_hw->boardflags & BFL_NOPLLDOWN) - brcms_b_pllreq(wlc_hw, true, BRCMS_PLLREQ_SHARED); - - if ((wlc_hw->sih->bustype == PCI_BUS) - && (ai_pci_war16165(wlc_hw->sih))) - wlc->war16165 = true; - - /* check device id(srom, nvram etc.) to set bands */ - if (wlc_hw->deviceid == BCM43224_D11N_ID || - wlc_hw->deviceid == BCM43224_D11N_ID_VEN1) { - /* Dualband boards */ - wlc_hw->_nbands = 2; - } else - wlc_hw->_nbands = 1; - - if ((wlc_hw->sih->chip == BCM43225_CHIP_ID)) - wlc_hw->_nbands = 1; - - /* BMAC_NOTE: remove init of pub values when brcms_c_attach() - * unconditionally does the init of these values - */ - wlc->vendorid = wlc_hw->vendorid; - wlc->deviceid = wlc_hw->deviceid; - wlc->pub->sih = wlc_hw->sih; - wlc->pub->corerev = wlc_hw->corerev; - wlc->pub->sromrev = wlc_hw->sromrev; - wlc->pub->boardrev = wlc_hw->boardrev; - wlc->pub->boardflags = wlc_hw->boardflags; - wlc->pub->boardflags2 = wlc_hw->boardflags2; - wlc->pub->_nbands = wlc_hw->_nbands; - - wlc_hw->physhim = wlc_phy_shim_attach(wlc_hw, wlc->wl, wlc); - - if (wlc_hw->physhim == NULL) { - wiphy_err(wiphy, "wl%d: brcms_b_attach: wlc_phy_shim_attach " - "failed\n", unit); - err = 25; - goto fail; - } - - /* pass all the parameters to wlc_phy_shared_attach in one struct */ - sha_params.sih = wlc_hw->sih; - sha_params.physhim = wlc_hw->physhim; - sha_params.unit = unit; - sha_params.corerev = wlc_hw->corerev; - sha_params.vars = vars; - sha_params.vid = wlc_hw->vendorid; - sha_params.did = wlc_hw->deviceid; - sha_params.chip = wlc_hw->sih->chip; - sha_params.chiprev = wlc_hw->sih->chiprev; - sha_params.chippkg = wlc_hw->sih->chippkg; - sha_params.sromrev = wlc_hw->sromrev; - sha_params.boardtype = wlc_hw->sih->boardtype; - sha_params.boardrev = wlc_hw->boardrev; - sha_params.boardvendor = wlc_hw->sih->boardvendor; - sha_params.boardflags = wlc_hw->boardflags; - sha_params.boardflags2 = wlc_hw->boardflags2; - sha_params.bustype = wlc_hw->sih->bustype; - sha_params.buscorerev = wlc_hw->sih->buscorerev; - - /* alloc and save pointer to shared phy state area */ - wlc_hw->phy_sh = wlc_phy_shared_attach(&sha_params); - if (!wlc_hw->phy_sh) { - err = 16; - goto fail; - } - - /* initialize software state for each core and band */ - for (j = 0; j < NBANDS_HW(wlc_hw); j++) { - /* - * band0 is always 2.4Ghz - * band1, if present, is 5Ghz - */ - - /* So if this is a single band 11a card, use band 1 */ - if (IS_SINGLEBAND_5G(wlc_hw->deviceid)) - j = BAND_5G_INDEX; - - brcms_c_setxband(wlc_hw, j); - - wlc_hw->band->bandunit = j; - wlc_hw->band->bandtype = j ? BRCM_BAND_5G : BRCM_BAND_2G; - wlc->band->bandunit = j; - wlc->band->bandtype = j ? BRCM_BAND_5G : BRCM_BAND_2G; - wlc->core->coreidx = ai_coreidx(wlc_hw->sih); - - wlc_hw->machwcap = R_REG(®s->machwcap); - wlc_hw->machwcap_backup = wlc_hw->machwcap; - - /* init tx fifo size */ - wlc_hw->xmtfifo_sz = - xmtfifo_sz[(wlc_hw->corerev - XMTFIFOTBL_STARTREV)]; - - /* Get a phy for this band */ - wlc_hw->band->pi = wlc_phy_attach(wlc_hw->phy_sh, - (void *)regs, brcms_b_bandtype(wlc_hw), vars, - wlc->wiphy); - if (wlc_hw->band->pi == NULL) { - wiphy_err(wiphy, "wl%d: brcms_b_attach: wlc_phy_" - "attach failed\n", unit); - err = 17; - goto fail; - } - - wlc_phy_machwcap_set(wlc_hw->band->pi, wlc_hw->machwcap); - - wlc_phy_get_phyversion(wlc_hw->band->pi, &wlc_hw->band->phytype, - &wlc_hw->band->phyrev, - &wlc_hw->band->radioid, - &wlc_hw->band->radiorev); - wlc_hw->band->abgphy_encore = - wlc_phy_get_encore(wlc_hw->band->pi); - wlc->band->abgphy_encore = wlc_phy_get_encore(wlc_hw->band->pi); - wlc_hw->band->core_flags = - wlc_phy_get_coreflags(wlc_hw->band->pi); - - /* verify good phy_type & supported phy revision */ - if (BRCMS_ISNPHY(wlc_hw->band)) { - if (NCONF_HAS(wlc_hw->band->phyrev)) - goto good_phy; - else - goto bad_phy; - } else if (BRCMS_ISLCNPHY(wlc_hw->band)) { - if (LCNCONF_HAS(wlc_hw->band->phyrev)) - goto good_phy; - else - goto bad_phy; - } else { - bad_phy: - wiphy_err(wiphy, "wl%d: brcms_b_attach: unsupported " - "phy type/rev (%d/%d)\n", unit, - wlc_hw->band->phytype, wlc_hw->band->phyrev); - err = 18; - goto fail; - } - - good_phy: - /* BMAC_NOTE: wlc->band->pi should not be set below and should be done in the - * high level attach. However we can not make that change until all low level access - * is changed to wlc_hw->band->pi. Instead do the wlc->band->pi init below, keeping - * wlc_hw->band->pi as well for incremental update of low level fns, and cut over - * low only init when all fns updated. - */ - wlc->band->pi = wlc_hw->band->pi; - wlc->band->phytype = wlc_hw->band->phytype; - wlc->band->phyrev = wlc_hw->band->phyrev; - wlc->band->radioid = wlc_hw->band->radioid; - wlc->band->radiorev = wlc_hw->band->radiorev; - - /* default contention windows size limits */ - wlc_hw->band->CWmin = APHY_CWMIN; - wlc_hw->band->CWmax = PHY_CWMAX; - - if (!brcms_b_attach_dmapio(wlc, j, wme)) { - err = 19; - goto fail; - } - } - - /* disable core to match driver "down" state */ - brcms_c_coredisable(wlc_hw); - - /* Match driver "down" state */ - if (wlc_hw->sih->bustype == PCI_BUS) - ai_pci_down(wlc_hw->sih); - - /* register sb interrupt callback functions */ - ai_register_intr_callback(wlc_hw->sih, (void *)brcms_c_wlintrsoff, - (void *)brcms_c_wlintrsrestore, NULL, wlc); - - /* turn off pll and xtal to match driver "down" state */ - brcms_b_xtal(wlc_hw, OFF); - - /* ********************************************************************* - * The hardware is in the DOWN state at this point. D11 core - * or cores are in reset with clocks off, and the board PLLs - * are off if possible. - * - * Beyond this point, wlc->sbclk == false and chip registers - * should not be touched. - ********************************************************************* - */ - - /* init etheraddr state variables */ - macaddr = brcms_c_get_macaddr(wlc_hw); - if (macaddr == NULL) { - wiphy_err(wiphy, "wl%d: brcms_b_attach: macaddr not found\n", - unit); - err = 21; - goto fail; - } - brcmu_ether_atoe(macaddr, wlc_hw->etheraddr); - if (is_broadcast_ether_addr(wlc_hw->etheraddr) || - is_zero_ether_addr(wlc_hw->etheraddr)) { - wiphy_err(wiphy, "wl%d: brcms_b_attach: bad macaddr %s\n", - unit, macaddr); - err = 22; - goto fail; - } - - BCMMSG(wlc->wiphy, - "deviceid 0x%x nbands %d board 0x%x macaddr: %s\n", - wlc_hw->deviceid, wlc_hw->_nbands, - wlc_hw->sih->boardtype, macaddr); - - return err; - - fail: - wiphy_err(wiphy, "wl%d: brcms_b_attach: failed with err %d\n", unit, - err); - return err; -} - /* * Initialize brcms_c_info default values ... * may get overrides later in this function @@ -1348,253 +955,6 @@ static void brcms_b_info_init(struct brcms_hardware *wlc_hw) wlc_hw->chanspec = CH20MHZ_CHSPEC(1); } -/* - * low level detach - */ -int brcms_b_detach(struct brcms_c_info *wlc) -{ - uint i; - struct brcms_hw_band *band; - struct brcms_hardware *wlc_hw = wlc->hw; - int callbacks; - - callbacks = 0; - - if (wlc_hw->sih) { - /* detach interrupt sync mechanism since interrupt is disabled and per-port - * interrupt object may has been freed. this must be done before sb core switch - */ - ai_deregister_intr_callback(wlc_hw->sih); - - if (wlc_hw->sih->bustype == PCI_BUS) - ai_pci_sleep(wlc_hw->sih); - } - - brcms_b_detach_dmapio(wlc_hw); - - band = wlc_hw->band; - for (i = 0; i < NBANDS_HW(wlc_hw); i++) { - if (band->pi) { - /* Detach this band's phy */ - wlc_phy_detach(band->pi); - band->pi = NULL; - } - band = wlc_hw->bandstate[OTHERBANDUNIT(wlc)]; - } - - /* Free shared phy state */ - kfree(wlc_hw->phy_sh); - - wlc_phy_shim_detach(wlc_hw->physhim); - - /* free vars */ - kfree(wlc_hw->vars); - wlc_hw->vars = NULL; - - if (wlc_hw->sih) { - ai_detach(wlc_hw->sih); - wlc_hw->sih = NULL; - } - - return callbacks; - -} - -void brcms_b_reset(struct brcms_hardware *wlc_hw) -{ - BCMMSG(wlc_hw->wlc->wiphy, "wl%d\n", wlc_hw->unit); - - /* reset the core */ - if (!DEVICEREMOVED(wlc_hw->wlc)) - brcms_b_corereset(wlc_hw, BRCMS_USE_COREFLAGS); - - /* purge the dma rings */ - brcms_c_flushqueues(wlc_hw->wlc); - - brcms_c_reset_bmac_done(wlc_hw->wlc); -} - -void -brcms_b_init(struct brcms_hardware *wlc_hw, chanspec_t chanspec, - bool mute) { - u32 macintmask; - bool fastclk; - struct brcms_c_info *wlc = wlc_hw->wlc; - - BCMMSG(wlc_hw->wlc->wiphy, "wl%d\n", wlc_hw->unit); - - /* request FAST clock if not on */ - fastclk = wlc_hw->forcefastclk; - if (!fastclk) - brcms_b_clkctl_clk(wlc_hw, CLK_FAST); - - /* disable interrupts */ - macintmask = brcms_intrsoff(wlc->wl); - - /* set up the specified band and chanspec */ - brcms_c_setxband(wlc_hw, CHSPEC_BANDUNIT(chanspec)); - wlc_phy_chanspec_radio_set(wlc_hw->band->pi, chanspec); - - /* do one-time phy inits and calibration */ - wlc_phy_cal_init(wlc_hw->band->pi); - - /* core-specific initialization */ - brcms_b_coreinit(wlc); - - /* suspend the tx fifos and mute the phy for preism cac time */ - if (mute) - brcms_b_mute(wlc_hw, ON, PHY_MUTE_FOR_PREISM); - - /* band-specific inits */ - brcms_b_bsinit(wlc, chanspec); - - /* restore macintmask */ - brcms_intrsrestore(wlc->wl, macintmask); - - /* seed wake_override with BRCMS_WAKE_OVERRIDE_MACSUSPEND since the mac - * is suspended and brcms_c_enable_mac() will clear this override bit. - */ - mboolset(wlc_hw->wake_override, BRCMS_WAKE_OVERRIDE_MACSUSPEND); - - /* - * initialize mac_suspend_depth to 1 to match ucode initial suspended state - */ - wlc_hw->mac_suspend_depth = 1; - - /* restore the clk */ - if (!fastclk) - brcms_b_clkctl_clk(wlc_hw, CLK_DYNAMIC); -} - -int brcms_b_up_prep(struct brcms_hardware *wlc_hw) -{ - uint coremask; - - BCMMSG(wlc_hw->wlc->wiphy, "wl%d\n", wlc_hw->unit); - - /* - * Enable pll and xtal, initialize the power control registers, - * and force fastclock for the remainder of brcms_c_up(). - */ - brcms_b_xtal(wlc_hw, ON); - ai_clkctl_init(wlc_hw->sih); - brcms_b_clkctl_clk(wlc_hw, CLK_FAST); - - /* - * Configure pci/pcmcia here instead of in brcms_c_attach() - * to allow mfg hotswap: down, hotswap (chip power cycle), up. - */ - coremask = (1 << wlc_hw->wlc->core->coreidx); - - if (wlc_hw->sih->bustype == PCI_BUS) - ai_pci_setup(wlc_hw->sih, coremask); - - /* - * Need to read the hwradio status here to cover the case where the system - * is loaded with the hw radio disabled. We do not want to bring the driver up in this case. - */ - if (brcms_b_radio_read_hwdisabled(wlc_hw)) { - /* put SB PCI in down state again */ - if (wlc_hw->sih->bustype == PCI_BUS) - ai_pci_down(wlc_hw->sih); - brcms_b_xtal(wlc_hw, OFF); - return -ENOMEDIUM; - } - - if (wlc_hw->sih->bustype == PCI_BUS) - ai_pci_up(wlc_hw->sih); - - /* reset the d11 core */ - brcms_b_corereset(wlc_hw, BRCMS_USE_COREFLAGS); - - return 0; -} - -int brcms_b_up_finish(struct brcms_hardware *wlc_hw) -{ - BCMMSG(wlc_hw->wlc->wiphy, "wl%d\n", wlc_hw->unit); - - wlc_hw->up = true; - wlc_phy_hw_state_upd(wlc_hw->band->pi, true); - - /* FULLY enable dynamic power control and d11 core interrupt */ - brcms_b_clkctl_clk(wlc_hw, CLK_DYNAMIC); - brcms_intrson(wlc_hw->wlc->wl); - return 0; -} - -int brcms_b_bmac_down_prep(struct brcms_hardware *wlc_hw) -{ - bool dev_gone; - uint callbacks = 0; - - BCMMSG(wlc_hw->wlc->wiphy, "wl%d\n", wlc_hw->unit); - - if (!wlc_hw->up) - return callbacks; - - dev_gone = DEVICEREMOVED(wlc_hw->wlc); - - /* disable interrupts */ - if (dev_gone) - wlc_hw->wlc->macintmask = 0; - else { - /* now disable interrupts */ - brcms_intrsoff(wlc_hw->wlc->wl); - - /* ensure we're running on the pll clock again */ - brcms_b_clkctl_clk(wlc_hw, CLK_FAST); - } - /* down phy at the last of this stage */ - callbacks += wlc_phy_down(wlc_hw->band->pi); - - return callbacks; -} - -int brcms_b_down_finish(struct brcms_hardware *wlc_hw) -{ - uint callbacks = 0; - bool dev_gone; - - BCMMSG(wlc_hw->wlc->wiphy, "wl%d\n", wlc_hw->unit); - - if (!wlc_hw->up) - return callbacks; - - wlc_hw->up = false; - wlc_phy_hw_state_upd(wlc_hw->band->pi, false); - - dev_gone = DEVICEREMOVED(wlc_hw->wlc); - - if (dev_gone) { - wlc_hw->sbclk = false; - wlc_hw->clk = false; - wlc_phy_hw_clk_state_upd(wlc_hw->band->pi, false); - - /* reclaim any posted packets */ - brcms_c_flushqueues(wlc_hw->wlc); - } else { - - /* Reset and disable the core */ - if (ai_iscoreup(wlc_hw->sih)) { - if (R_REG(&wlc_hw->regs->maccontrol) & - MCTL_EN_MAC) - brcms_c_suspend_mac_and_wait(wlc_hw->wlc); - callbacks += brcms_reset(wlc_hw->wlc->wl); - brcms_c_coredisable(wlc_hw); - } - - /* turn off primary xtal and pll */ - if (!wlc_hw->noreset) { - if (wlc_hw->sih->bustype == PCI_BUS) - ai_pci_down(wlc_hw->sih); - brcms_b_xtal(wlc_hw, OFF); - } - } - - return callbacks; -} - void brcms_b_wait_for_wake(struct brcms_hardware *wlc_hw) { /* delay before first read of ucode state */ @@ -1769,32 +1129,6 @@ brcms_b_mhf(struct brcms_hardware *wlc_hw, u8 idx, u16 mask, u16 val, } } -u16 brcms_b_mhf_get(struct brcms_hardware *wlc_hw, u8 idx, int bands) -{ - struct brcms_hw_band *band; - - if (idx >= MHFMAX) - return 0; /* error condition */ - switch (bands) { - case BRCM_BAND_AUTO: - band = wlc_hw->band; - break; - case BRCM_BAND_5G: - band = wlc_hw->bandstate[BAND_5G_INDEX]; - break; - case BRCM_BAND_2G: - band = wlc_hw->bandstate[BAND_2G_INDEX]; - break; - default: - band = NULL; /* error condition */ - } - - if (!band) - return 0; - - return band->mhfs[idx]; -} - static void brcms_c_write_mhf(struct brcms_hardware *wlc_hw, u16 *mhfs) { u8 idx; @@ -2055,27 +1389,6 @@ brcms_c_write_hw_bcntemplate1(struct brcms_hardware *wlc_hw, void *bcn, OR_REG(®s->maccommand, MCMD_BCN1VLD); } -/* mac is assumed to be suspended at this point */ -void -brcms_b_write_hw_bcntemplates(struct brcms_hardware *wlc_hw, void *bcn, - int len, bool both) -{ - d11regs_t *regs = wlc_hw->regs; - - if (both) { - brcms_c_write_hw_bcntemplate0(wlc_hw, bcn, len); - brcms_c_write_hw_bcntemplate1(wlc_hw, bcn, len); - } else { - /* bcn 0 */ - if (!(R_REG(®s->maccommand) & MCMD_BCN0VLD)) - brcms_c_write_hw_bcntemplate0(wlc_hw, bcn, len); - /* bcn 1 */ - else if (! - (R_REG(®s->maccommand) & MCMD_BCN1VLD)) - brcms_c_write_hw_bcntemplate1(wlc_hw, bcn, len); - } -} - static void brcms_b_upd_synthpu(struct brcms_hardware *wlc_hw) { u16 v; @@ -2403,48 +1716,6 @@ bool brcms_b_radio_read_hwdisabled(struct brcms_hardware *wlc_hw) return v; } -/* Initialize just the hardware when coming out of POR or S3/S5 system states */ -void brcms_b_hw_up(struct brcms_hardware *wlc_hw) -{ - if (wlc_hw->wlc->pub->hw_up) - return; - - BCMMSG(wlc_hw->wlc->wiphy, "wl%d\n", wlc_hw->unit); - - /* - * Enable pll and xtal, initialize the power control registers, - * and force fastclock for the remainder of brcms_c_up(). - */ - brcms_b_xtal(wlc_hw, ON); - ai_clkctl_init(wlc_hw->sih); - brcms_b_clkctl_clk(wlc_hw, CLK_FAST); - - if (wlc_hw->sih->bustype == PCI_BUS) { - ai_pci_fixcfg(wlc_hw->sih); - - /* AI chip doesn't restore bar0win2 on hibernation/resume, need sw fixup */ - if ((wlc_hw->sih->chip == BCM43224_CHIP_ID) || - (wlc_hw->sih->chip == BCM43225_CHIP_ID)) - wlc_hw->regs = - (d11regs_t *) ai_setcore(wlc_hw->sih, D11_CORE_ID, - 0); - } - - /* Inform phy that a POR reset has occurred so it does a complete phy init */ - wlc_phy_por_inform(wlc_hw->band->pi); - - wlc_hw->ucode_loaded = false; - wlc_hw->wlc->pub->hw_up = true; - - if ((wlc_hw->boardflags & BFL_FEM) - && (wlc_hw->sih->chip == BCM4313_CHIP_ID)) { - if (! - (wlc_hw->boardrev >= 0x1250 - && (wlc_hw->boardflags & BFL_FEM_BT))) - ai_epa_4313war(wlc_hw->sih); - } -} - static bool wlc_dma_rxreset(struct brcms_hardware *wlc_hw, uint fifo) { struct dma_pub *di = wlc_hw->di[fifo]; @@ -2589,191 +1860,6 @@ static void brcms_b_corerev_fifofixup(struct brcms_hardware *wlc_hw) xmtfifo_sz[TX_BCMC_FIFO])); } -/* d11 core init - * reset PSM - * download ucode/PCM - * let ucode run to suspended - * download ucode inits - * config other core registers - * init dma - */ -static void brcms_b_coreinit(struct brcms_c_info *wlc) -{ - struct brcms_hardware *wlc_hw = wlc->hw; - d11regs_t *regs; - u32 sflags; - uint bcnint_us; - uint i = 0; - bool fifosz_fixup = false; - int err = 0; - u16 buf[NFIFO]; - struct wiphy *wiphy = wlc->wiphy; - - regs = wlc_hw->regs; - - BCMMSG(wlc->wiphy, "wl%d\n", wlc_hw->unit); - - /* reset PSM */ - brcms_b_mctrl(wlc_hw, ~0, (MCTL_IHR_EN | MCTL_PSM_JMP_0 | MCTL_WAKE)); - - brcms_ucode_download(wlc_hw); - /* - * FIFOSZ fixup. driver wants to controls the fifo allocation. - */ - fifosz_fixup = true; - - /* let the PSM run to the suspended state, set mode to BSS STA */ - W_REG(®s->macintstatus, -1); - brcms_b_mctrl(wlc_hw, ~0, - (MCTL_IHR_EN | MCTL_INFRA | MCTL_PSM_RUN | MCTL_WAKE)); - - /* wait for ucode to self-suspend after auto-init */ - SPINWAIT(((R_REG(®s->macintstatus) & MI_MACSSPNDD) == 0), - 1000 * 1000); - if ((R_REG(®s->macintstatus) & MI_MACSSPNDD) == 0) - wiphy_err(wiphy, "wl%d: wlc_coreinit: ucode did not self-" - "suspend!\n", wlc_hw->unit); - - brcms_c_gpio_init(wlc); - - sflags = ai_core_sflags(wlc_hw->sih, 0, 0); - - if (D11REV_IS(wlc_hw->corerev, 23)) { - if (BRCMS_ISNPHY(wlc_hw->band)) - brcms_c_write_inits(wlc_hw, d11n0initvals16); - else - wiphy_err(wiphy, "%s: wl%d: unsupported phy in corerev" - " %d\n", __func__, wlc_hw->unit, - wlc_hw->corerev); - } else if (D11REV_IS(wlc_hw->corerev, 24)) { - if (BRCMS_ISLCNPHY(wlc_hw->band)) { - brcms_c_write_inits(wlc_hw, d11lcn0initvals24); - } else { - wiphy_err(wiphy, "%s: wl%d: unsupported phy in corerev" - " %d\n", __func__, wlc_hw->unit, - wlc_hw->corerev); - } - } else { - wiphy_err(wiphy, "%s: wl%d: unsupported corerev %d\n", - __func__, wlc_hw->unit, wlc_hw->corerev); - } - - /* For old ucode, txfifo sizes needs to be modified(increased) */ - if (fifosz_fixup == true) { - brcms_b_corerev_fifofixup(wlc_hw); - } - - /* check txfifo allocations match between ucode and driver */ - buf[TX_AC_BE_FIFO] = brcms_b_read_shm(wlc_hw, M_FIFOSIZE0); - if (buf[TX_AC_BE_FIFO] != wlc_hw->xmtfifo_sz[TX_AC_BE_FIFO]) { - i = TX_AC_BE_FIFO; - err = -1; - } - buf[TX_AC_VI_FIFO] = brcms_b_read_shm(wlc_hw, M_FIFOSIZE1); - if (buf[TX_AC_VI_FIFO] != wlc_hw->xmtfifo_sz[TX_AC_VI_FIFO]) { - i = TX_AC_VI_FIFO; - err = -1; - } - buf[TX_AC_BK_FIFO] = brcms_b_read_shm(wlc_hw, M_FIFOSIZE2); - buf[TX_AC_VO_FIFO] = (buf[TX_AC_BK_FIFO] >> 8) & 0xff; - buf[TX_AC_BK_FIFO] &= 0xff; - if (buf[TX_AC_BK_FIFO] != wlc_hw->xmtfifo_sz[TX_AC_BK_FIFO]) { - i = TX_AC_BK_FIFO; - err = -1; - } - if (buf[TX_AC_VO_FIFO] != wlc_hw->xmtfifo_sz[TX_AC_VO_FIFO]) { - i = TX_AC_VO_FIFO; - err = -1; - } - buf[TX_BCMC_FIFO] = brcms_b_read_shm(wlc_hw, M_FIFOSIZE3); - buf[TX_ATIM_FIFO] = (buf[TX_BCMC_FIFO] >> 8) & 0xff; - buf[TX_BCMC_FIFO] &= 0xff; - if (buf[TX_BCMC_FIFO] != wlc_hw->xmtfifo_sz[TX_BCMC_FIFO]) { - i = TX_BCMC_FIFO; - err = -1; - } - if (buf[TX_ATIM_FIFO] != wlc_hw->xmtfifo_sz[TX_ATIM_FIFO]) { - i = TX_ATIM_FIFO; - err = -1; - } - if (err != 0) { - wiphy_err(wiphy, "wlc_coreinit: txfifo mismatch: ucode size %d" - " driver size %d index %d\n", buf[i], - wlc_hw->xmtfifo_sz[i], i); - } - - /* make sure we can still talk to the mac */ - WARN_ON(R_REG(®s->maccontrol) == 0xffffffff); - - /* band-specific inits done by wlc_bsinit() */ - - /* Set up frame burst size and antenna swap threshold init values */ - brcms_b_write_shm(wlc_hw, M_MBURST_SIZE, MAXTXFRAMEBURST); - brcms_b_write_shm(wlc_hw, M_MAX_ANTCNT, ANTCNT); - - /* enable one rx interrupt per received frame */ - W_REG(®s->intrcvlazy[0], (1 << IRL_FC_SHIFT)); - - /* set the station mode (BSS STA) */ - brcms_b_mctrl(wlc_hw, - (MCTL_INFRA | MCTL_DISCARD_PMQ | MCTL_AP), - (MCTL_INFRA | MCTL_DISCARD_PMQ)); - - /* set up Beacon interval */ - bcnint_us = 0x8000 << 10; - W_REG(®s->tsf_cfprep, (bcnint_us << CFPREP_CBI_SHIFT)); - W_REG(®s->tsf_cfpstart, bcnint_us); - W_REG(®s->macintstatus, MI_GP1); - - /* write interrupt mask */ - W_REG(®s->intctrlregs[RX_FIFO].intmask, DEF_RXINTMASK); - - /* allow the MAC to control the PHY clock (dynamic on/off) */ - brcms_b_macphyclk_set(wlc_hw, ON); - - /* program dynamic clock control fast powerup delay register */ - wlc->fastpwrup_dly = ai_clkctl_fast_pwrup_delay(wlc_hw->sih); - W_REG(®s->scc_fastpwrup_dly, wlc->fastpwrup_dly); - - /* tell the ucode the corerev */ - brcms_b_write_shm(wlc_hw, M_MACHW_VER, (u16) wlc_hw->corerev); - - /* tell the ucode MAC capabilities */ - brcms_b_write_shm(wlc_hw, M_MACHW_CAP_L, - (u16) (wlc_hw->machwcap & 0xffff)); - brcms_b_write_shm(wlc_hw, M_MACHW_CAP_H, - (u16) ((wlc_hw-> - machwcap >> 16) & 0xffff)); - - /* write retry limits to SCR, this done after PSM init */ - W_REG(®s->objaddr, OBJADDR_SCR_SEL | S_DOT11_SRC_LMT); - (void)R_REG(®s->objaddr); - W_REG(®s->objdata, wlc_hw->SRL); - W_REG(®s->objaddr, OBJADDR_SCR_SEL | S_DOT11_LRC_LMT); - (void)R_REG(®s->objaddr); - W_REG(®s->objdata, wlc_hw->LRL); - - /* write rate fallback retry limits */ - brcms_b_write_shm(wlc_hw, M_SFRMTXCNTFBRTHSD, wlc_hw->SFBL); - brcms_b_write_shm(wlc_hw, M_LFRMTXCNTFBRTHSD, wlc_hw->LFBL); - - AND_REG(®s->ifs_ctl, 0x0FFF); - W_REG(®s->ifs_aifsn, EDCF_AIFSN_MIN); - - /* dma initializations */ - wlc->txpend16165war = 0; - - /* init the tx dma engines */ - for (i = 0; i < NFIFO; i++) { - if (wlc_hw->di[i]) - dma_txinit(wlc_hw->di[i]); - } - - /* init the rx dma engine(s) and post receive buffers */ - dma_rxinit(wlc_hw->di[RX_FIFO]); - dma_rxfill(wlc_hw->di[RX_FIFO]); -} - /* This function is used for changing the tsf frac register * If spur avoidance mode is off, the mac freq will be 80/120/160Mhz * If spur avoidance mode is on1, the mac freq will be 82/123/164Mhz @@ -3107,6 +2193,39 @@ void brcms_c_intrsrestore(struct brcms_c_info *wlc, u32 macintmask) W_REG(&wlc_hw->regs->macintmask, wlc->macintmask); } +static void brcms_b_tx_fifo_suspend(struct brcms_hardware *wlc_hw, + uint tx_fifo) +{ + u8 fifo = 1 << tx_fifo; + + /* Two clients of this code, 11h Quiet period and scanning. */ + + /* only suspend if not already suspended */ + if ((wlc_hw->suspended_fifos & fifo) == fifo) + return; + + /* force the core awake only if not already */ + if (wlc_hw->suspended_fifos == 0) + brcms_c_ucode_wake_override_set(wlc_hw, + BRCMS_WAKE_OVERRIDE_TXFIFO); + + wlc_hw->suspended_fifos |= fifo; + + if (wlc_hw->di[tx_fifo]) { + /* Suspending AMPDU transmissions in the middle can cause underflow + * which may result in mismatch between ucode and driver + * so suspend the mac before suspending the FIFO + */ + if (BRCMS_PHY_11N_CAP(wlc_hw->band)) + brcms_c_suspend_mac_and_wait(wlc_hw->wlc); + + dma_txsuspend(wlc_hw->di[tx_fifo]); + + if (BRCMS_PHY_11N_CAP(wlc_hw->band)) + brcms_c_enable_mac(wlc_hw->wlc); + } +} + static void brcms_b_mute(struct brcms_hardware *wlc_hw, bool on, mbool flags) { u8 null_ether_addr[ETH_ALEN] = {0, 0, 0, 0, 0, 0}; @@ -3143,17 +2262,6 @@ static void brcms_b_mute(struct brcms_hardware *wlc_hw, bool on, mbool flags) brcms_c_ucode_mute_override_clear(wlc_hw); } -int brcms_b_xmtfifo_sz_get(struct brcms_hardware *wlc_hw, uint fifo, - uint *blocks) -{ - if (fifo >= NFIFO) - return -EINVAL; - - *blocks = wlc_hw->xmtfifo_sz[fifo]; - - return 0; -} - /* brcms_b_tx_fifo_suspended: * Check the MAC's tx suspend status for a tx fifo. * @@ -3183,39 +2291,6 @@ static bool brcms_b_tx_fifo_suspended(struct brcms_hardware *wlc_hw, return false; } -static void brcms_b_tx_fifo_suspend(struct brcms_hardware *wlc_hw, - uint tx_fifo) -{ - u8 fifo = 1 << tx_fifo; - - /* Two clients of this code, 11h Quiet period and scanning. */ - - /* only suspend if not already suspended */ - if ((wlc_hw->suspended_fifos & fifo) == fifo) - return; - - /* force the core awake only if not already */ - if (wlc_hw->suspended_fifos == 0) - brcms_c_ucode_wake_override_set(wlc_hw, - BRCMS_WAKE_OVERRIDE_TXFIFO); - - wlc_hw->suspended_fifos |= fifo; - - if (wlc_hw->di[tx_fifo]) { - /* Suspending AMPDU transmissions in the middle can cause underflow - * which may result in mismatch between ucode and driver - * so suspend the mac before suspending the FIFO - */ - if (BRCMS_PHY_11N_CAP(wlc_hw->band)) - brcms_c_suspend_mac_and_wait(wlc_hw->wlc); - - dma_txsuspend(wlc_hw->di[tx_fifo]); - - if (BRCMS_PHY_11N_CAP(wlc_hw->band)) - brcms_c_enable_mac(wlc_hw->wlc); - } -} - static void brcms_b_tx_fifo_resume(struct brcms_hardware *wlc_hw, uint tx_fifo) { @@ -3356,81 +2431,6 @@ bool brcms_c_isr(struct brcms_c_info *wlc, bool *wantdpc) } -static bool -brcms_b_dotxstatus(struct brcms_hardware *wlc_hw, struct tx_status *txs, - u32 s2) -{ - /* discard intermediate indications for ucode with one legitimate case: - * e.g. if "useRTS" is set. ucode did a successful rts/cts exchange, but the subsequent - * tx of DATA failed. so it will start rts/cts from the beginning (resetting the rts - * transmission count) - */ - if (!(txs->status & TX_STATUS_AMPDU) - && (txs->status & TX_STATUS_INTERMEDIATE)) { - return false; - } - - return brcms_c_dotxstatus(wlc_hw->wlc, txs, s2); -} - -/* process tx completion events in BMAC - * Return true if more tx status need to be processed. false otherwise. - */ -static bool -brcms_b_txstatus(struct brcms_hardware *wlc_hw, bool bound, bool *fatal) -{ - bool morepending = false; - struct brcms_c_info *wlc = wlc_hw->wlc; - d11regs_t *regs; - struct tx_status txstatus, *txs; - u32 s1, s2; - uint n = 0; - /* - * Param 'max_tx_num' indicates max. # tx status to process before - * break out. - */ - uint max_tx_num = bound ? wlc->pub->tunables->txsbnd : -1; - - BCMMSG(wlc->wiphy, "wl%d\n", wlc_hw->unit); - - txs = &txstatus; - regs = wlc_hw->regs; - while (!(*fatal) - && (s1 = R_REG(®s->frmtxstatus)) & TXS_V) { - - if (s1 == 0xffffffff) { - wiphy_err(wlc->wiphy, "wl%d: %s: dead chip\n", - wlc_hw->unit, __func__); - return morepending; - } - - s2 = R_REG(®s->frmtxstatus2); - - txs->status = s1 & TXS_STATUS_MASK; - txs->frameid = (s1 & TXS_FID_MASK) >> TXS_FID_SHIFT; - txs->sequence = s2 & TXS_SEQ_MASK; - txs->phyerr = (s2 & TXS_PTX_MASK) >> TXS_PTX_SHIFT; - txs->lasttxtime = 0; - - *fatal = brcms_b_dotxstatus(wlc_hw, txs, s2); - - /* !give others some time to run! */ - if (++n >= max_tx_num) - break; - } - - if (*fatal) - return 0; - - if (n >= max_tx_num) - morepending = true; - - if (!pktq_empty(&wlc->pkt_queue->q)) - brcms_c_send_q(wlc); - - return morepending; -} - void brcms_c_suspend_mac_and_wait(struct brcms_c_info *wlc) { struct brcms_hardware *wlc_hw = wlc->hw; @@ -3612,19 +2612,6 @@ void brcms_b_band_stf_ss_set(struct brcms_hardware *wlc_hw, u8 stf_mode) brcms_upd_ofdm_pctl1_table(wlc_hw); } -void -brcms_b_read_tsf(struct brcms_hardware *wlc_hw, u32 *tsf_l_ptr, - u32 *tsf_h_ptr) -{ - d11regs_t *regs = wlc_hw->regs; - - /* read the tsf timer low, then high to get an atomic read */ - *tsf_l_ptr = R_REG(®s->tsf_timerlow); - *tsf_h_ptr = R_REG(®s->tsf_timerhigh); - - return; -} - static bool brcms_b_validate_chip_access(struct brcms_hardware *wlc_hw) { d11regs_t *regs; @@ -3966,29 +2953,6 @@ void brcms_b_pllreq(struct brcms_hardware *wlc_hw, bool set, mbool req_bit) return; } -u16 brcms_b_rate_shm_offset(struct brcms_hardware *wlc_hw, u8 rate) -{ - u16 table_ptr; - u8 phy_rate, index; - - /* get the phy specific rate encoding for the PLCP SIGNAL field */ - if (IS_OFDM(rate)) - table_ptr = M_RT_DIRMAP_A; - else - table_ptr = M_RT_DIRMAP_B; - - /* for a given rate, the LS-nibble of the PLCP SIGNAL field is - * the index into the rate table. - */ - phy_rate = rate_info[rate] & BRCMS_RATE_MASK; - index = phy_rate & 0xf; - - /* Find the SHM pointer to the rate table entry by looking in the - * Direct-map Table - */ - return 2 * brcms_b_read_shm(wlc_hw, table_ptr + (index * 2)); -} - void brcms_b_antsel_set(struct brcms_hardware *wlc_hw, u32 antsel_avail) { wlc_hw->antsel_avail = antsel_avail; @@ -4027,6 +2991,20 @@ bool brcms_c_ps_allowed(struct brcms_c_info *wlc) return true; } +void brcms_b_reset(struct brcms_hardware *wlc_hw) +{ + BCMMSG(wlc_hw->wlc->wiphy, "wl%d\n", wlc_hw->unit); + + /* reset the core */ + if (!DEVICEREMOVED(wlc_hw->wlc)) + brcms_b_corereset(wlc_hw, BRCMS_USE_COREFLAGS); + + /* purge the dma rings */ + brcms_c_flushqueues(wlc_hw->wlc); + + brcms_c_reset_bmac_done(wlc_hw->wlc); +} + void brcms_c_reset(struct brcms_c_info *wlc) { BCMMSG(wlc->wiphy, "wl%d\n", wlc->pub->unit); @@ -4072,6 +3050,243 @@ static void brcms_c_init_scb(struct brcms_c_info *wlc, struct scb *scb) scb->seqnum[i] = 0; } +/* d11 core init + * reset PSM + * download ucode/PCM + * let ucode run to suspended + * download ucode inits + * config other core registers + * init dma + */ +static void brcms_b_coreinit(struct brcms_c_info *wlc) +{ + struct brcms_hardware *wlc_hw = wlc->hw; + d11regs_t *regs; + u32 sflags; + uint bcnint_us; + uint i = 0; + bool fifosz_fixup = false; + int err = 0; + u16 buf[NFIFO]; + struct wiphy *wiphy = wlc->wiphy; + + regs = wlc_hw->regs; + + BCMMSG(wlc->wiphy, "wl%d\n", wlc_hw->unit); + + /* reset PSM */ + brcms_b_mctrl(wlc_hw, ~0, (MCTL_IHR_EN | MCTL_PSM_JMP_0 | MCTL_WAKE)); + + brcms_ucode_download(wlc_hw); + /* + * FIFOSZ fixup. driver wants to controls the fifo allocation. + */ + fifosz_fixup = true; + + /* let the PSM run to the suspended state, set mode to BSS STA */ + W_REG(®s->macintstatus, -1); + brcms_b_mctrl(wlc_hw, ~0, + (MCTL_IHR_EN | MCTL_INFRA | MCTL_PSM_RUN | MCTL_WAKE)); + + /* wait for ucode to self-suspend after auto-init */ + SPINWAIT(((R_REG(®s->macintstatus) & MI_MACSSPNDD) == 0), + 1000 * 1000); + if ((R_REG(®s->macintstatus) & MI_MACSSPNDD) == 0) + wiphy_err(wiphy, "wl%d: wlc_coreinit: ucode did not self-" + "suspend!\n", wlc_hw->unit); + + brcms_c_gpio_init(wlc); + + sflags = ai_core_sflags(wlc_hw->sih, 0, 0); + + if (D11REV_IS(wlc_hw->corerev, 23)) { + if (BRCMS_ISNPHY(wlc_hw->band)) + brcms_c_write_inits(wlc_hw, d11n0initvals16); + else + wiphy_err(wiphy, "%s: wl%d: unsupported phy in corerev" + " %d\n", __func__, wlc_hw->unit, + wlc_hw->corerev); + } else if (D11REV_IS(wlc_hw->corerev, 24)) { + if (BRCMS_ISLCNPHY(wlc_hw->band)) { + brcms_c_write_inits(wlc_hw, d11lcn0initvals24); + } else { + wiphy_err(wiphy, "%s: wl%d: unsupported phy in corerev" + " %d\n", __func__, wlc_hw->unit, + wlc_hw->corerev); + } + } else { + wiphy_err(wiphy, "%s: wl%d: unsupported corerev %d\n", + __func__, wlc_hw->unit, wlc_hw->corerev); + } + + /* For old ucode, txfifo sizes needs to be modified(increased) */ + if (fifosz_fixup == true) { + brcms_b_corerev_fifofixup(wlc_hw); + } + + /* check txfifo allocations match between ucode and driver */ + buf[TX_AC_BE_FIFO] = brcms_b_read_shm(wlc_hw, M_FIFOSIZE0); + if (buf[TX_AC_BE_FIFO] != wlc_hw->xmtfifo_sz[TX_AC_BE_FIFO]) { + i = TX_AC_BE_FIFO; + err = -1; + } + buf[TX_AC_VI_FIFO] = brcms_b_read_shm(wlc_hw, M_FIFOSIZE1); + if (buf[TX_AC_VI_FIFO] != wlc_hw->xmtfifo_sz[TX_AC_VI_FIFO]) { + i = TX_AC_VI_FIFO; + err = -1; + } + buf[TX_AC_BK_FIFO] = brcms_b_read_shm(wlc_hw, M_FIFOSIZE2); + buf[TX_AC_VO_FIFO] = (buf[TX_AC_BK_FIFO] >> 8) & 0xff; + buf[TX_AC_BK_FIFO] &= 0xff; + if (buf[TX_AC_BK_FIFO] != wlc_hw->xmtfifo_sz[TX_AC_BK_FIFO]) { + i = TX_AC_BK_FIFO; + err = -1; + } + if (buf[TX_AC_VO_FIFO] != wlc_hw->xmtfifo_sz[TX_AC_VO_FIFO]) { + i = TX_AC_VO_FIFO; + err = -1; + } + buf[TX_BCMC_FIFO] = brcms_b_read_shm(wlc_hw, M_FIFOSIZE3); + buf[TX_ATIM_FIFO] = (buf[TX_BCMC_FIFO] >> 8) & 0xff; + buf[TX_BCMC_FIFO] &= 0xff; + if (buf[TX_BCMC_FIFO] != wlc_hw->xmtfifo_sz[TX_BCMC_FIFO]) { + i = TX_BCMC_FIFO; + err = -1; + } + if (buf[TX_ATIM_FIFO] != wlc_hw->xmtfifo_sz[TX_ATIM_FIFO]) { + i = TX_ATIM_FIFO; + err = -1; + } + if (err != 0) { + wiphy_err(wiphy, "wlc_coreinit: txfifo mismatch: ucode size %d" + " driver size %d index %d\n", buf[i], + wlc_hw->xmtfifo_sz[i], i); + } + + /* make sure we can still talk to the mac */ + WARN_ON(R_REG(®s->maccontrol) == 0xffffffff); + + /* band-specific inits done by wlc_bsinit() */ + + /* Set up frame burst size and antenna swap threshold init values */ + brcms_b_write_shm(wlc_hw, M_MBURST_SIZE, MAXTXFRAMEBURST); + brcms_b_write_shm(wlc_hw, M_MAX_ANTCNT, ANTCNT); + + /* enable one rx interrupt per received frame */ + W_REG(®s->intrcvlazy[0], (1 << IRL_FC_SHIFT)); + + /* set the station mode (BSS STA) */ + brcms_b_mctrl(wlc_hw, + (MCTL_INFRA | MCTL_DISCARD_PMQ | MCTL_AP), + (MCTL_INFRA | MCTL_DISCARD_PMQ)); + + /* set up Beacon interval */ + bcnint_us = 0x8000 << 10; + W_REG(®s->tsf_cfprep, (bcnint_us << CFPREP_CBI_SHIFT)); + W_REG(®s->tsf_cfpstart, bcnint_us); + W_REG(®s->macintstatus, MI_GP1); + + /* write interrupt mask */ + W_REG(®s->intctrlregs[RX_FIFO].intmask, DEF_RXINTMASK); + + /* allow the MAC to control the PHY clock (dynamic on/off) */ + brcms_b_macphyclk_set(wlc_hw, ON); + + /* program dynamic clock control fast powerup delay register */ + wlc->fastpwrup_dly = ai_clkctl_fast_pwrup_delay(wlc_hw->sih); + W_REG(®s->scc_fastpwrup_dly, wlc->fastpwrup_dly); + + /* tell the ucode the corerev */ + brcms_b_write_shm(wlc_hw, M_MACHW_VER, (u16) wlc_hw->corerev); + + /* tell the ucode MAC capabilities */ + brcms_b_write_shm(wlc_hw, M_MACHW_CAP_L, + (u16) (wlc_hw->machwcap & 0xffff)); + brcms_b_write_shm(wlc_hw, M_MACHW_CAP_H, + (u16) ((wlc_hw-> + machwcap >> 16) & 0xffff)); + + /* write retry limits to SCR, this done after PSM init */ + W_REG(®s->objaddr, OBJADDR_SCR_SEL | S_DOT11_SRC_LMT); + (void)R_REG(®s->objaddr); + W_REG(®s->objdata, wlc_hw->SRL); + W_REG(®s->objaddr, OBJADDR_SCR_SEL | S_DOT11_LRC_LMT); + (void)R_REG(®s->objaddr); + W_REG(®s->objdata, wlc_hw->LRL); + + /* write rate fallback retry limits */ + brcms_b_write_shm(wlc_hw, M_SFRMTXCNTFBRTHSD, wlc_hw->SFBL); + brcms_b_write_shm(wlc_hw, M_LFRMTXCNTFBRTHSD, wlc_hw->LFBL); + + AND_REG(®s->ifs_ctl, 0x0FFF); + W_REG(®s->ifs_aifsn, EDCF_AIFSN_MIN); + + /* dma initializations */ + wlc->txpend16165war = 0; + + /* init the tx dma engines */ + for (i = 0; i < NFIFO; i++) { + if (wlc_hw->di[i]) + dma_txinit(wlc_hw->di[i]); + } + + /* init the rx dma engine(s) and post receive buffers */ + dma_rxinit(wlc_hw->di[RX_FIFO]); + dma_rxfill(wlc_hw->di[RX_FIFO]); +} + +void +brcms_b_init(struct brcms_hardware *wlc_hw, chanspec_t chanspec, + bool mute) { + u32 macintmask; + bool fastclk; + struct brcms_c_info *wlc = wlc_hw->wlc; + + BCMMSG(wlc_hw->wlc->wiphy, "wl%d\n", wlc_hw->unit); + + /* request FAST clock if not on */ + fastclk = wlc_hw->forcefastclk; + if (!fastclk) + brcms_b_clkctl_clk(wlc_hw, CLK_FAST); + + /* disable interrupts */ + macintmask = brcms_intrsoff(wlc->wl); + + /* set up the specified band and chanspec */ + brcms_c_setxband(wlc_hw, CHSPEC_BANDUNIT(chanspec)); + wlc_phy_chanspec_radio_set(wlc_hw->band->pi, chanspec); + + /* do one-time phy inits and calibration */ + wlc_phy_cal_init(wlc_hw->band->pi); + + /* core-specific initialization */ + brcms_b_coreinit(wlc); + + /* suspend the tx fifos and mute the phy for preism cac time */ + if (mute) + brcms_b_mute(wlc_hw, ON, PHY_MUTE_FOR_PREISM); + + /* band-specific inits */ + brcms_b_bsinit(wlc, chanspec); + + /* restore macintmask */ + brcms_intrsrestore(wlc->wl, macintmask); + + /* seed wake_override with BRCMS_WAKE_OVERRIDE_MACSUSPEND since the mac + * is suspended and brcms_c_enable_mac() will clear this override bit. + */ + mboolset(wlc_hw->wake_override, BRCMS_WAKE_OVERRIDE_MACSUSPEND); + + /* + * initialize mac_suspend_depth to 1 to match ucode initial suspended state + */ + wlc_hw->mac_suspend_depth = 1; + + /* restore the clk */ + if (!fastclk) + brcms_b_clkctl_clk(wlc_hw, CLK_DYNAMIC); +} + void brcms_c_init(struct brcms_c_info *wlc) { d11regs_t *regs; @@ -4296,6 +3511,17 @@ void brcms_c_set_bssid(struct brcms_bss_cfg *cfg) #endif } +void brcms_b_set_shortslot(struct brcms_hardware *wlc_hw, bool shortslot) +{ + wlc_hw->shortslot = shortslot; + + if (BAND_2G(brcms_b_bandtype(wlc_hw)) && wlc_hw->up) { + brcms_c_suspend_mac_and_wait(wlc_hw->wlc); + brcms_b_update_slot_timing(wlc_hw, shortslot); + brcms_c_enable_mac(wlc_hw->wlc); + } +} + /* * Suspend the the MAC and update the slot timing * for standard 11b/g (20us slots) or shortslot 11g (9us slots). @@ -4394,6 +3620,50 @@ static void brcms_c_set_phy_chanspec(struct brcms_c_info *wlc, } +void +brcms_b_set_chanspec(struct brcms_hardware *wlc_hw, chanspec_t chanspec, + bool mute, struct txpwr_limits *txpwr) +{ + uint bandunit; + + BCMMSG(wlc_hw->wlc->wiphy, "wl%d: 0x%x\n", wlc_hw->unit, chanspec); + + wlc_hw->chanspec = chanspec; + + /* Switch bands if necessary */ + if (NBANDS_HW(wlc_hw) > 1) { + bandunit = CHSPEC_BANDUNIT(chanspec); + if (wlc_hw->band->bandunit != bandunit) { + /* brcms_b_setband disables other bandunit, + * use light band switch if not up yet + */ + if (wlc_hw->up) { + wlc_phy_chanspec_radio_set(wlc_hw-> + bandstate[bandunit]-> + pi, chanspec); + brcms_b_setband(wlc_hw, bandunit, chanspec); + } else { + brcms_c_setxband(wlc_hw, bandunit); + } + } + } + + wlc_phy_initcal_enable(wlc_hw->band->pi, !mute); + + if (!wlc_hw->up) { + if (wlc_hw->clk) + wlc_phy_txpower_limit_set(wlc_hw->band->pi, txpwr, + chanspec); + wlc_phy_chanspec_radio_set(wlc_hw->band->pi, chanspec); + } else { + wlc_phy_chanspec_set(wlc_hw->band->pi, chanspec); + wlc_phy_txpower_limit_set(wlc_hw->band->pi, txpwr, chanspec); + + /* Update muting of the channel */ + brcms_b_mute(wlc_hw, mute, 0); + } +} + void brcms_c_set_chanspec(struct brcms_c_info *wlc, chanspec_t chanspec) { uint bandunit; @@ -4981,6 +4251,356 @@ struct brcms_pub *brcms_c_pub(void *wlc) #define CHIP_SUPPORTS_11N(wlc) 1 +/* low level attach + * run backplane attach, init nvram + * run phy attach + * initialize software state for each core and band + * put the whole chip in reset(driver down state), no clock + */ +int brcms_b_attach(struct brcms_c_info *wlc, u16 vendor, u16 device, uint unit, + bool piomode, void *regsva, uint bustype, void *btparam) +{ + struct brcms_hardware *wlc_hw; + d11regs_t *regs; + char *macaddr = NULL; + char *vars; + uint err = 0; + uint j; + bool wme = false; + struct shared_phy_params sha_params; + struct wiphy *wiphy = wlc->wiphy; + + BCMMSG(wlc->wiphy, "wl%d: vendor 0x%x device 0x%x\n", unit, vendor, + device); + + wme = true; + + wlc_hw = wlc->hw; + wlc_hw->wlc = wlc; + wlc_hw->unit = unit; + wlc_hw->band = wlc_hw->bandstate[0]; + wlc_hw->_piomode = piomode; + + /* populate struct brcms_hardware with default values */ + brcms_b_info_init(wlc_hw); + + /* + * Do the hardware portion of the attach. + * Also initialize software state that depends on the particular hardware + * we are running. + */ + wlc_hw->sih = ai_attach(regsva, bustype, btparam, + &wlc_hw->vars, &wlc_hw->vars_size); + if (wlc_hw->sih == NULL) { + wiphy_err(wiphy, "wl%d: brcms_b_attach: si_attach failed\n", + unit); + err = 11; + goto fail; + } + vars = wlc_hw->vars; + + /* + * Get vendid/devid nvram overwrites, which could be different + * than those the BIOS recognizes for devices on PCMCIA_BUS, + * SDIO_BUS, and SROMless devices on PCI_BUS. + */ +#ifdef BCMBUSTYPE + bustype = BCMBUSTYPE; +#endif + if (bustype != SI_BUS) { + char *var; + + var = getvar(vars, "vendid"); + if (var) { + vendor = (u16) simple_strtoul(var, NULL, 0); + wiphy_err(wiphy, "Overriding vendor id = 0x%x\n", + vendor); + } + var = getvar(vars, "devid"); + if (var) { + u16 devid = (u16) simple_strtoul(var, NULL, 0); + if (devid != 0xffff) { + device = devid; + wiphy_err(wiphy, "Overriding device id = 0x%x" + "\n", device); + } + } + + /* verify again the device is supported */ + if (!brcms_c_chipmatch(vendor, device)) { + wiphy_err(wiphy, "wl%d: brcms_b_attach: Unsupported " + "vendor/device (0x%x/0x%x)\n", + unit, vendor, device); + err = 12; + goto fail; + } + } + + wlc_hw->vendorid = vendor; + wlc_hw->deviceid = device; + + /* set bar0 window to point at D11 core */ + wlc_hw->regs = (d11regs_t *) ai_setcore(wlc_hw->sih, D11_CORE_ID, 0); + wlc_hw->corerev = ai_corerev(wlc_hw->sih); + + regs = wlc_hw->regs; + + wlc->regs = wlc_hw->regs; + + /* validate chip, chiprev and corerev */ + if (!brcms_c_isgoodchip(wlc_hw)) { + err = 13; + goto fail; + } + + /* initialize power control registers */ + ai_clkctl_init(wlc_hw->sih); + + /* request fastclock and force fastclock for the rest of attach + * bring the d11 core out of reset. + * For PMU chips, the first wlc_clkctl_clk is no-op since core-clk is still false; + * But it will be called again inside wlc_corereset, after d11 is out of reset. + */ + brcms_b_clkctl_clk(wlc_hw, CLK_FAST); + brcms_b_corereset(wlc_hw, BRCMS_USE_COREFLAGS); + + if (!brcms_b_validate_chip_access(wlc_hw)) { + wiphy_err(wiphy, "wl%d: brcms_b_attach: validate_chip_access " + "failed\n", unit); + err = 14; + goto fail; + } + + /* get the board rev, used just below */ + j = getintvar(vars, "boardrev"); + /* promote srom boardrev of 0xFF to 1 */ + if (j == BOARDREV_PROMOTABLE) + j = BOARDREV_PROMOTED; + wlc_hw->boardrev = (u16) j; + if (!brcms_c_validboardtype(wlc_hw)) { + wiphy_err(wiphy, "wl%d: brcms_b_attach: Unsupported Broadcom " + "board type (0x%x)" " or revision level (0x%x)\n", + unit, wlc_hw->sih->boardtype, wlc_hw->boardrev); + err = 15; + goto fail; + } + wlc_hw->sromrev = (u8) getintvar(vars, "sromrev"); + wlc_hw->boardflags = (u32) getintvar(vars, "boardflags"); + wlc_hw->boardflags2 = (u32) getintvar(vars, "boardflags2"); + + if (wlc_hw->boardflags & BFL_NOPLLDOWN) + brcms_b_pllreq(wlc_hw, true, BRCMS_PLLREQ_SHARED); + + if ((wlc_hw->sih->bustype == PCI_BUS) + && (ai_pci_war16165(wlc_hw->sih))) + wlc->war16165 = true; + + /* check device id(srom, nvram etc.) to set bands */ + if (wlc_hw->deviceid == BCM43224_D11N_ID || + wlc_hw->deviceid == BCM43224_D11N_ID_VEN1) { + /* Dualband boards */ + wlc_hw->_nbands = 2; + } else + wlc_hw->_nbands = 1; + + if ((wlc_hw->sih->chip == BCM43225_CHIP_ID)) + wlc_hw->_nbands = 1; + + /* BMAC_NOTE: remove init of pub values when brcms_c_attach() + * unconditionally does the init of these values + */ + wlc->vendorid = wlc_hw->vendorid; + wlc->deviceid = wlc_hw->deviceid; + wlc->pub->sih = wlc_hw->sih; + wlc->pub->corerev = wlc_hw->corerev; + wlc->pub->sromrev = wlc_hw->sromrev; + wlc->pub->boardrev = wlc_hw->boardrev; + wlc->pub->boardflags = wlc_hw->boardflags; + wlc->pub->boardflags2 = wlc_hw->boardflags2; + wlc->pub->_nbands = wlc_hw->_nbands; + + wlc_hw->physhim = wlc_phy_shim_attach(wlc_hw, wlc->wl, wlc); + + if (wlc_hw->physhim == NULL) { + wiphy_err(wiphy, "wl%d: brcms_b_attach: wlc_phy_shim_attach " + "failed\n", unit); + err = 25; + goto fail; + } + + /* pass all the parameters to wlc_phy_shared_attach in one struct */ + sha_params.sih = wlc_hw->sih; + sha_params.physhim = wlc_hw->physhim; + sha_params.unit = unit; + sha_params.corerev = wlc_hw->corerev; + sha_params.vars = vars; + sha_params.vid = wlc_hw->vendorid; + sha_params.did = wlc_hw->deviceid; + sha_params.chip = wlc_hw->sih->chip; + sha_params.chiprev = wlc_hw->sih->chiprev; + sha_params.chippkg = wlc_hw->sih->chippkg; + sha_params.sromrev = wlc_hw->sromrev; + sha_params.boardtype = wlc_hw->sih->boardtype; + sha_params.boardrev = wlc_hw->boardrev; + sha_params.boardvendor = wlc_hw->sih->boardvendor; + sha_params.boardflags = wlc_hw->boardflags; + sha_params.boardflags2 = wlc_hw->boardflags2; + sha_params.bustype = wlc_hw->sih->bustype; + sha_params.buscorerev = wlc_hw->sih->buscorerev; + + /* alloc and save pointer to shared phy state area */ + wlc_hw->phy_sh = wlc_phy_shared_attach(&sha_params); + if (!wlc_hw->phy_sh) { + err = 16; + goto fail; + } + + /* initialize software state for each core and band */ + for (j = 0; j < NBANDS_HW(wlc_hw); j++) { + /* + * band0 is always 2.4Ghz + * band1, if present, is 5Ghz + */ + + /* So if this is a single band 11a card, use band 1 */ + if (IS_SINGLEBAND_5G(wlc_hw->deviceid)) + j = BAND_5G_INDEX; + + brcms_c_setxband(wlc_hw, j); + + wlc_hw->band->bandunit = j; + wlc_hw->band->bandtype = j ? BRCM_BAND_5G : BRCM_BAND_2G; + wlc->band->bandunit = j; + wlc->band->bandtype = j ? BRCM_BAND_5G : BRCM_BAND_2G; + wlc->core->coreidx = ai_coreidx(wlc_hw->sih); + + wlc_hw->machwcap = R_REG(®s->machwcap); + wlc_hw->machwcap_backup = wlc_hw->machwcap; + + /* init tx fifo size */ + wlc_hw->xmtfifo_sz = + xmtfifo_sz[(wlc_hw->corerev - XMTFIFOTBL_STARTREV)]; + + /* Get a phy for this band */ + wlc_hw->band->pi = wlc_phy_attach(wlc_hw->phy_sh, + (void *)regs, brcms_b_bandtype(wlc_hw), vars, + wlc->wiphy); + if (wlc_hw->band->pi == NULL) { + wiphy_err(wiphy, "wl%d: brcms_b_attach: wlc_phy_" + "attach failed\n", unit); + err = 17; + goto fail; + } + + wlc_phy_machwcap_set(wlc_hw->band->pi, wlc_hw->machwcap); + + wlc_phy_get_phyversion(wlc_hw->band->pi, &wlc_hw->band->phytype, + &wlc_hw->band->phyrev, + &wlc_hw->band->radioid, + &wlc_hw->band->radiorev); + wlc_hw->band->abgphy_encore = + wlc_phy_get_encore(wlc_hw->band->pi); + wlc->band->abgphy_encore = wlc_phy_get_encore(wlc_hw->band->pi); + wlc_hw->band->core_flags = + wlc_phy_get_coreflags(wlc_hw->band->pi); + + /* verify good phy_type & supported phy revision */ + if (BRCMS_ISNPHY(wlc_hw->band)) { + if (NCONF_HAS(wlc_hw->band->phyrev)) + goto good_phy; + else + goto bad_phy; + } else if (BRCMS_ISLCNPHY(wlc_hw->band)) { + if (LCNCONF_HAS(wlc_hw->band->phyrev)) + goto good_phy; + else + goto bad_phy; + } else { + bad_phy: + wiphy_err(wiphy, "wl%d: brcms_b_attach: unsupported " + "phy type/rev (%d/%d)\n", unit, + wlc_hw->band->phytype, wlc_hw->band->phyrev); + err = 18; + goto fail; + } + + good_phy: + /* BMAC_NOTE: wlc->band->pi should not be set below and should be done in the + * high level attach. However we can not make that change until all low level access + * is changed to wlc_hw->band->pi. Instead do the wlc->band->pi init below, keeping + * wlc_hw->band->pi as well for incremental update of low level fns, and cut over + * low only init when all fns updated. + */ + wlc->band->pi = wlc_hw->band->pi; + wlc->band->phytype = wlc_hw->band->phytype; + wlc->band->phyrev = wlc_hw->band->phyrev; + wlc->band->radioid = wlc_hw->band->radioid; + wlc->band->radiorev = wlc_hw->band->radiorev; + + /* default contention windows size limits */ + wlc_hw->band->CWmin = APHY_CWMIN; + wlc_hw->band->CWmax = PHY_CWMAX; + + if (!brcms_b_attach_dmapio(wlc, j, wme)) { + err = 19; + goto fail; + } + } + + /* disable core to match driver "down" state */ + brcms_c_coredisable(wlc_hw); + + /* Match driver "down" state */ + if (wlc_hw->sih->bustype == PCI_BUS) + ai_pci_down(wlc_hw->sih); + + /* register sb interrupt callback functions */ + ai_register_intr_callback(wlc_hw->sih, (void *)brcms_c_wlintrsoff, + (void *)brcms_c_wlintrsrestore, NULL, wlc); + + /* turn off pll and xtal to match driver "down" state */ + brcms_b_xtal(wlc_hw, OFF); + + /* ********************************************************************* + * The hardware is in the DOWN state at this point. D11 core + * or cores are in reset with clocks off, and the board PLLs + * are off if possible. + * + * Beyond this point, wlc->sbclk == false and chip registers + * should not be touched. + ********************************************************************* + */ + + /* init etheraddr state variables */ + macaddr = brcms_c_get_macaddr(wlc_hw); + if (macaddr == NULL) { + wiphy_err(wiphy, "wl%d: brcms_b_attach: macaddr not found\n", + unit); + err = 21; + goto fail; + } + brcmu_ether_atoe(macaddr, wlc_hw->etheraddr); + if (is_broadcast_ether_addr(wlc_hw->etheraddr) || + is_zero_ether_addr(wlc_hw->etheraddr)) { + wiphy_err(wiphy, "wl%d: brcms_b_attach: bad macaddr %s\n", + unit, macaddr); + err = 22; + goto fail; + } + + BCMMSG(wlc->wiphy, + "deviceid 0x%x nbands %d board 0x%x macaddr: %s\n", + wlc_hw->deviceid, wlc_hw->_nbands, + wlc_hw->sih->boardtype, macaddr); + + return err; + + fail: + wiphy_err(wiphy, "wl%d: brcms_b_attach: failed with err %d\n", unit, + err); + return err; +} + /* * The common driver entry routine. Error codes should be unique */ @@ -5334,6 +4954,58 @@ static void brcms_c_detach_module(struct brcms_c_info *wlc) } /* + * low level detach + */ +int brcms_b_detach(struct brcms_c_info *wlc) +{ + uint i; + struct brcms_hw_band *band; + struct brcms_hardware *wlc_hw = wlc->hw; + int callbacks; + + callbacks = 0; + + if (wlc_hw->sih) { + /* detach interrupt sync mechanism since interrupt is disabled and per-port + * interrupt object may has been freed. this must be done before sb core switch + */ + ai_deregister_intr_callback(wlc_hw->sih); + + if (wlc_hw->sih->bustype == PCI_BUS) + ai_pci_sleep(wlc_hw->sih); + } + + brcms_b_detach_dmapio(wlc_hw); + + band = wlc_hw->band; + for (i = 0; i < NBANDS_HW(wlc_hw); i++) { + if (band->pi) { + /* Detach this band's phy */ + wlc_phy_detach(band->pi); + band->pi = NULL; + } + band = wlc_hw->bandstate[OTHERBANDUNIT(wlc)]; + } + + /* Free shared phy state */ + kfree(wlc_hw->phy_sh); + + wlc_phy_shim_detach(wlc_hw->physhim); + + /* free vars */ + kfree(wlc_hw->vars); + wlc_hw->vars = NULL; + + if (wlc_hw->sih) { + ai_detach(wlc_hw->sih); + wlc_hw->sih = NULL; + } + + return callbacks; + +} + +/* * Return a count of the number of driver callbacks still pending. * * General policy is that brcms_c_detach can only dealloc/free software states. @@ -5560,6 +5232,29 @@ bool brcms_c_radio_monitor_stop(struct brcms_c_info *wlc) return brcms_del_timer(wlc->wl, wlc->radio_timer); } +/* common low-level watchdog code */ +void brcms_b_watchdog(void *arg) +{ + struct brcms_c_info *wlc = (struct brcms_c_info *) arg; + struct brcms_hardware *wlc_hw = wlc->hw; + + BCMMSG(wlc->wiphy, "wl%d\n", wlc_hw->unit); + + if (!wlc_hw->up) + return; + + /* increment second count */ + wlc_hw->now++; + + /* Check for FIFO error interrupts */ + brcms_b_fifoerrors(wlc_hw); + + /* make sure RX dma has buffers */ + dma_rxfill(wlc->hw->di[RX_FIFO]); + + wlc_phy_watchdog(wlc_hw->band->pi); +} + static void brcms_c_watchdog_by_timer(void *arg) { brcms_c_watchdog(arg); @@ -5637,6 +5332,105 @@ static void brcms_c_watchdog(void *arg) } } +/* Initialize just the hardware when coming out of POR or S3/S5 system states */ +void brcms_b_hw_up(struct brcms_hardware *wlc_hw) +{ + if (wlc_hw->wlc->pub->hw_up) + return; + + BCMMSG(wlc_hw->wlc->wiphy, "wl%d\n", wlc_hw->unit); + + /* + * Enable pll and xtal, initialize the power control registers, + * and force fastclock for the remainder of brcms_c_up(). + */ + brcms_b_xtal(wlc_hw, ON); + ai_clkctl_init(wlc_hw->sih); + brcms_b_clkctl_clk(wlc_hw, CLK_FAST); + + if (wlc_hw->sih->bustype == PCI_BUS) { + ai_pci_fixcfg(wlc_hw->sih); + + /* AI chip doesn't restore bar0win2 on hibernation/resume, need sw fixup */ + if ((wlc_hw->sih->chip == BCM43224_CHIP_ID) || + (wlc_hw->sih->chip == BCM43225_CHIP_ID)) + wlc_hw->regs = + (d11regs_t *) ai_setcore(wlc_hw->sih, D11_CORE_ID, + 0); + } + + /* Inform phy that a POR reset has occurred so it does a complete phy init */ + wlc_phy_por_inform(wlc_hw->band->pi); + + wlc_hw->ucode_loaded = false; + wlc_hw->wlc->pub->hw_up = true; + + if ((wlc_hw->boardflags & BFL_FEM) + && (wlc_hw->sih->chip == BCM4313_CHIP_ID)) { + if (! + (wlc_hw->boardrev >= 0x1250 + && (wlc_hw->boardflags & BFL_FEM_BT))) + ai_epa_4313war(wlc_hw->sih); + } +} + +int brcms_b_up_prep(struct brcms_hardware *wlc_hw) +{ + uint coremask; + + BCMMSG(wlc_hw->wlc->wiphy, "wl%d\n", wlc_hw->unit); + + /* + * Enable pll and xtal, initialize the power control registers, + * and force fastclock for the remainder of brcms_c_up(). + */ + brcms_b_xtal(wlc_hw, ON); + ai_clkctl_init(wlc_hw->sih); + brcms_b_clkctl_clk(wlc_hw, CLK_FAST); + + /* + * Configure pci/pcmcia here instead of in brcms_c_attach() + * to allow mfg hotswap: down, hotswap (chip power cycle), up. + */ + coremask = (1 << wlc_hw->wlc->core->coreidx); + + if (wlc_hw->sih->bustype == PCI_BUS) + ai_pci_setup(wlc_hw->sih, coremask); + + /* + * Need to read the hwradio status here to cover the case where the system + * is loaded with the hw radio disabled. We do not want to bring the driver up in this case. + */ + if (brcms_b_radio_read_hwdisabled(wlc_hw)) { + /* put SB PCI in down state again */ + if (wlc_hw->sih->bustype == PCI_BUS) + ai_pci_down(wlc_hw->sih); + brcms_b_xtal(wlc_hw, OFF); + return -ENOMEDIUM; + } + + if (wlc_hw->sih->bustype == PCI_BUS) + ai_pci_up(wlc_hw->sih); + + /* reset the d11 core */ + brcms_b_corereset(wlc_hw, BRCMS_USE_COREFLAGS); + + return 0; +} + +int brcms_b_up_finish(struct brcms_hardware *wlc_hw) +{ + BCMMSG(wlc_hw->wlc->wiphy, "wl%d\n", wlc_hw->unit); + + wlc_hw->up = true; + wlc_phy_hw_state_upd(wlc_hw->band->pi, true); + + /* FULLY enable dynamic power control and d11 core interrupt */ + brcms_b_clkctl_clk(wlc_hw, CLK_DYNAMIC); + brcms_intrson(wlc_hw->wlc->wl); + return 0; +} + /* make interface operational */ int brcms_c_up(struct brcms_c_info *wlc) { @@ -5773,6 +5567,78 @@ static uint brcms_c_down_del_timer(struct brcms_c_info *wlc) return callbacks; } +int brcms_b_bmac_down_prep(struct brcms_hardware *wlc_hw) +{ + bool dev_gone; + uint callbacks = 0; + + BCMMSG(wlc_hw->wlc->wiphy, "wl%d\n", wlc_hw->unit); + + if (!wlc_hw->up) + return callbacks; + + dev_gone = DEVICEREMOVED(wlc_hw->wlc); + + /* disable interrupts */ + if (dev_gone) + wlc_hw->wlc->macintmask = 0; + else { + /* now disable interrupts */ + brcms_intrsoff(wlc_hw->wlc->wl); + + /* ensure we're running on the pll clock again */ + brcms_b_clkctl_clk(wlc_hw, CLK_FAST); + } + /* down phy at the last of this stage */ + callbacks += wlc_phy_down(wlc_hw->band->pi); + + return callbacks; +} + +int brcms_b_down_finish(struct brcms_hardware *wlc_hw) +{ + uint callbacks = 0; + bool dev_gone; + + BCMMSG(wlc_hw->wlc->wiphy, "wl%d\n", wlc_hw->unit); + + if (!wlc_hw->up) + return callbacks; + + wlc_hw->up = false; + wlc_phy_hw_state_upd(wlc_hw->band->pi, false); + + dev_gone = DEVICEREMOVED(wlc_hw->wlc); + + if (dev_gone) { + wlc_hw->sbclk = false; + wlc_hw->clk = false; + wlc_phy_hw_clk_state_upd(wlc_hw->band->pi, false); + + /* reclaim any posted packets */ + brcms_c_flushqueues(wlc_hw->wlc); + } else { + + /* Reset and disable the core */ + if (ai_iscoreup(wlc_hw->sih)) { + if (R_REG(&wlc_hw->regs->maccontrol) & + MCTL_EN_MAC) + brcms_c_suspend_mac_and_wait(wlc_hw->wlc); + callbacks += brcms_reset(wlc_hw->wlc->wl); + brcms_c_coredisable(wlc_hw); + } + + /* turn off primary xtal and pll */ + if (!wlc_hw->noreset) { + if (wlc_hw->sih->bustype == PCI_BUS) + ai_pci_down(wlc_hw->sih); + brcms_b_xtal(wlc_hw, OFF); + } + } + + return callbacks; +} + /* * Mark the interface nonoperational, stop the software mechanisms, * disable the hardware, free any transient buffer state. @@ -6709,6 +6575,29 @@ void brcms_c_print_rxh(struct d11rxhdr *rxh) } #endif /* defined(BCMDBG) */ +u16 brcms_b_rate_shm_offset(struct brcms_hardware *wlc_hw, u8 rate) +{ + u16 table_ptr; + u8 phy_rate, index; + + /* get the phy specific rate encoding for the PLCP SIGNAL field */ + if (IS_OFDM(rate)) + table_ptr = M_RT_DIRMAP_A; + else + table_ptr = M_RT_DIRMAP_B; + + /* for a given rate, the LS-nibble of the PLCP SIGNAL field is + * the index into the rate table. + */ + phy_rate = rate_info[rate] & BRCMS_RATE_MASK; + index = phy_rate & 0xf; + + /* Find the SHM pointer to the rate table entry by looking in the + * Direct-map Table + */ + return 2 * brcms_b_read_shm(wlc_hw, table_ptr + (index * 2)); +} + static u16 brcms_c_rate_shm_offset(struct brcms_c_info *wlc, u8 rate) { return brcms_b_rate_shm_offset(wlc->hw, rate); @@ -8114,6 +8003,19 @@ void brcms_c_bcn_li_upd(struct brcms_c_info *wlc) (wlc->bcn_li_dtim << 8) | wlc->bcn_li_bcn); } +void +brcms_b_read_tsf(struct brcms_hardware *wlc_hw, u32 *tsf_l_ptr, + u32 *tsf_h_ptr) +{ + d11regs_t *regs = wlc_hw->regs; + + /* read the tsf timer low, then high to get an atomic read */ + *tsf_l_ptr = R_REG(®s->tsf_timerlow); + *tsf_h_ptr = R_REG(®s->tsf_timerhigh); + + return; +} + /* * recover 64bit TSF value from the 16bit TSF value in the rx header * given the assumption that the TSF passed in header is within 65ms @@ -8933,6 +8835,27 @@ int brcms_c_get_header_len() return TXOFF; } +/* mac is assumed to be suspended at this point */ +void +brcms_b_write_hw_bcntemplates(struct brcms_hardware *wlc_hw, void *bcn, + int len, bool both) +{ + d11regs_t *regs = wlc_hw->regs; + + if (both) { + brcms_c_write_hw_bcntemplate0(wlc_hw, bcn, len); + brcms_c_write_hw_bcntemplate1(wlc_hw, bcn, len); + } else { + /* bcn 0 */ + if (!(R_REG(®s->maccommand) & MCMD_BCN0VLD)) + brcms_c_write_hw_bcntemplate0(wlc_hw, bcn, len); + /* bcn 1 */ + else if (! + (R_REG(®s->maccommand) & MCMD_BCN1VLD)) + brcms_c_write_hw_bcntemplate1(wlc_hw, bcn, len); + } +} + /* Update a beacon for a particular BSS * For MBSS, this updates the software template and sets "latest" to the index of the * template updated. @@ -9341,6 +9264,17 @@ void brcms_c_mhf(struct brcms_c_info *wlc, u8 idx, u16 mask, u16 val, int bands) brcms_b_mhf(wlc->hw, idx, mask, val, bands); } +int brcms_b_xmtfifo_sz_get(struct brcms_hardware *wlc_hw, uint fifo, + uint *blocks) +{ + if (fifo >= NFIFO) + return -EINVAL; + + *blocks = wlc_hw->xmtfifo_sz[fifo]; + + return 0; +} + int brcms_c_xmtfifo_sz_get(struct brcms_c_info *wlc, uint fifo, uint *blocks) { return brcms_b_xmtfifo_sz_get(wlc->hw, fifo, blocks); -- 1.7.1