/* * Copyright (c) 2008 Bruno Randolf * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer, without modification. * 2. Redistributions in binary form must reproduce at minimum a disclaimer * similar to the "NO WARRANTY" disclaimer below ("Disclaimer") and any * redistribution must be conditioned upon including a substantially * similar Disclaimer requirement for further binary redistribution. * 3. Neither the names of the above-listed copyright holders nor the names * of any contributors may be used to endorse or promote products derived * from this software without specific prior written permission. * * Alternatively, this software may be distributed under the terms of the * GNU General Public License ("GPL") version 2 as published by the Free * Software Foundation. * * NO WARRANTY * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF NONINFRINGEMENT, MERCHANTIBILITY * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL * THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF * THE POSSIBILITY OF SUCH DAMAGES. * * $Id: br1 $ */ #include "ath_hal/ah_devid.h" #include "if_media.h" #include #include "if_athvar.h" #include "if_ath_hal.h" #include "if_ath_hal_macros.h" #include "if_ath_hal_wrappers.h" #include "if_ath_hal_extensions.h" /* Known SREVs */ static struct ath5k_srev_name srev_names[] = { { "5210", AR5K_VERSION_VER, AR5K_SREV_VER_AR5210 }, { "5311", AR5K_VERSION_VER, AR5K_SREV_VER_AR5311 }, { "5311A", AR5K_VERSION_VER, AR5K_SREV_VER_AR5311A }, { "5311B", AR5K_VERSION_VER, AR5K_SREV_VER_AR5311B }, { "5211", AR5K_VERSION_VER, AR5K_SREV_VER_AR5211 }, { "5212", AR5K_VERSION_VER, AR5K_SREV_VER_AR5212 }, { "5213", AR5K_VERSION_VER, AR5K_SREV_VER_AR5213 }, { "5213A", AR5K_VERSION_VER, AR5K_SREV_VER_AR5213A }, { "2413", AR5K_VERSION_VER, AR5K_SREV_VER_AR2413 }, { "2414", AR5K_VERSION_VER, AR5K_SREV_VER_AR2414 }, { "2424", AR5K_VERSION_VER, AR5K_SREV_VER_AR2424 }, { "5424", AR5K_VERSION_VER, AR5K_SREV_VER_AR5424 }, { "5413", AR5K_VERSION_VER, AR5K_SREV_VER_AR5413 }, { "5414", AR5K_VERSION_VER, AR5K_SREV_VER_AR5414 }, { "5416", AR5K_VERSION_VER, AR5K_SREV_VER_AR5416 }, { "5418", AR5K_VERSION_VER, AR5K_SREV_VER_AR5418 }, { "2425", AR5K_VERSION_VER, AR5K_SREV_VER_AR2425 }, { "xxxxx", AR5K_VERSION_VER, AR5K_SREV_UNKNOWN }, { "5110", AR5K_VERSION_RAD, AR5K_SREV_RAD_5110 }, { "5111", AR5K_VERSION_RAD, AR5K_SREV_RAD_5111 }, { "2111", AR5K_VERSION_RAD, AR5K_SREV_RAD_2111 }, { "5112", AR5K_VERSION_RAD, AR5K_SREV_RAD_5112 }, { "5112A", AR5K_VERSION_RAD, AR5K_SREV_RAD_5112A }, { "2112", AR5K_VERSION_RAD, AR5K_SREV_RAD_2112 }, { "2112A", AR5K_VERSION_RAD, AR5K_SREV_RAD_2112A }, { "SChip", AR5K_VERSION_RAD, AR5K_SREV_RAD_SC0 }, { "SChip", AR5K_VERSION_RAD, AR5K_SREV_RAD_SC1 }, { "SChip", AR5K_VERSION_RAD, AR5K_SREV_RAD_SC2 }, { "5133", AR5K_VERSION_RAD, AR5K_SREV_RAD_5133 }, { "xxxxx", AR5K_VERSION_RAD, AR5K_SREV_UNKNOWN }, }; #define AR5210_MAGIC 0x19980124 #define AR5211_MAGIC 0x19570405 #define AR5212_MAGIC 0x19541014 #define AR5416_MAGIC 0x20065416 int ar_device(struct ath_softc *sc) { int magic = sc->sc_ah->ah_magic; switch (magic) { case AR5210_MAGIC: return 5210; case AR5211_MAGIC: return 5211; case AR5212_MAGIC: return 5212; case AR5416_MAGIC: return 5416; default: printk(KERN_WARNING "unknown HAL magic 0x%08x\n", magic); return 0; } } int ath_set_ack_bitrate(struct ath_softc *sc, int high) { if (ar_device(sc) == 5212) { /* set ack to be sent at low bit-rate */ u_int32_t v = AR5K_STA_ID1_BASE_RATE_11B | AR5K_STA_ID1_ACKCTS_6MB; if (high) ath_reg_write(sc, AR5K_STA_ID1, ath_reg_read(sc, AR5K_STA_ID1) & ~v); else ath_reg_write(sc, AR5K_STA_ID1, ath_reg_read(sc, AR5K_STA_ID1) | v); return 0; } return 1; } const char * ath5k_chip_name(enum ath5k_srev_type type, u_int16_t val) { const char *name = "xxxxx"; unsigned int i; for (i = 0; i < ARRAY_SIZE(srev_names); i++) { if (srev_names[i].sr_type != type) continue; if ((val & 0xff) < srev_names[i + 1].sr_val) { name = srev_names[i].sr_name; break; } } return name; } void ath_hw_beacon_stop(struct ath_softc *sc) { HAL_BEACON_TIMERS btimers; btimers.bt_intval = 0; btimers.bt_nexttbtt = 0; btimers.bt_nextdba = 0xffffffff; btimers.bt_nextswba = 0xffffffff; btimers.bt_nextatim = 0; ath_hal_setbeacontimers(sc->sc_ah, &btimers); } /* * IBSS mode: check the ATIM window size and fix it if necessary. * * the need for this function arises from the problem that due to unlucky timing * of beacon timer configuration (which we try to avoid) and due to unlucky * timing of local TSF updates (triggered by the reception of a beacon with the * same BSSID - something we can't avoid) the beacon timers can be up updated * seperately, leaving one of them in the past, not beeing updated until the * timers wrap around. due to the fact that the beacon interval does not fit * into the timer period (16 bit) a whole number of times the size of the ATIM * window can get bigger than desired. * * usually we have an ATIM window size of 1 but this function is written to * handle other window sizes as well. */ int ath_hw_check_atim(struct ath_softc *sc, int window, int intval) { struct ath_hal *ah = sc->sc_ah; unsigned int nbtt, atim, is5210 = 0; if (ATH_SREV_FROM_AH(ah) >= AR5K_SREV_VER_AR5416) return 0; /* AR5416+ doesn't do ATIM in HW */ if (ATH_SREV_FROM_AH(ah) == AR5K_SREV_VER_AR5210) { nbtt = OS_REG_READ(ah, AR5K_TIMER0_5210); atim = OS_REG_READ(ah, AR5K_TIMER3_5210); is5210 = 1; } else { nbtt = OS_REG_READ(ah, AR5K_TIMER0_5211); atim = OS_REG_READ(ah, AR5K_TIMER3_5211); } /* * check if the ATIM window is still correct: * 1.) usually ATIM should be NBTT + window * 2.) nbtt already updated * 3.) nbtt already updated and has wrapped around * 4.) atim has wrapped around */ if ((atim - nbtt != window) && /* 1.) */ (nbtt - atim != intval - window) && /* 2.) */ ((nbtt | 0x10000) - atim != intval - window) && /* 3.) */ ((atim | 0x10000) - nbtt != window)) { /* 4.) */ if (is5210) OS_REG_WRITE(ah, AR5K_TIMER3_5210, nbtt + window ); else OS_REG_WRITE(ah, AR5K_TIMER3_5211, nbtt + window ); return atim - nbtt; } return 0; }