/* * Copyright (c) 2007 The DragonFly Project. All rights reserved. * * This code is derived from software contributed to The DragonFly Project * by Sepherosa Ziehau * * 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. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in * the documentation and/or other materials provided with the * distribution. * 3. Neither the name of The DragonFly Project nor the names of its * contributors may be used to endorse or promote products derived * from this software without specific, prior written permission. * * 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 MERCHANTABILITY AND FITNESS * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, 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 DAMAGE. * * $DragonFly: src/sys/dev/netif/bwi/bwimac.c,v 1.13 2008/02/15 11:15:38 sephe Exp $ */ #include __FBSDID("$FreeBSD$"); #include "opt_inet.h" #include "opt_bwi.h" #include "opt_wlan.h" #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 #include #include #include #include struct bwi_retry_lim { uint16_t shretry; uint16_t shretry_fb; uint16_t lgretry; uint16_t lgretry_fb; }; static int bwi_mac_test(struct bwi_mac *); static int bwi_mac_get_property(struct bwi_mac *); static void bwi_mac_set_retry_lim(struct bwi_mac *, const struct bwi_retry_lim *); static void bwi_mac_set_ackrates(struct bwi_mac *, const struct ieee80211_rate_table *rt, const struct ieee80211_rateset *); static int bwi_mac_gpio_init(struct bwi_mac *); static int bwi_mac_gpio_fini(struct bwi_mac *); static void bwi_mac_opmode_init(struct bwi_mac *); static void bwi_mac_hostflags_init(struct bwi_mac *); static void bwi_mac_bss_param_init(struct bwi_mac *); static void bwi_mac_fw_free(struct bwi_mac *); static int bwi_mac_fw_load(struct bwi_mac *); static int bwi_mac_fw_init(struct bwi_mac *); static int bwi_mac_fw_load_iv(struct bwi_mac *, const struct firmware *); static void bwi_mac_setup_tpctl(struct bwi_mac *); static void bwi_mac_adjust_tpctl(struct bwi_mac *, int, int); static void bwi_mac_lock(struct bwi_mac *); static void bwi_mac_unlock(struct bwi_mac *); static const uint8_t bwi_sup_macrev[] = { 2, 4, 5, 6, 7, 9, 10 }; void bwi_tmplt_write_4(struct bwi_mac *mac, uint32_t ofs, uint32_t val) { struct bwi_softc *sc = mac->mac_sc; if (mac->mac_flags & BWI_MAC_F_BSWAP) val = bswap32(val); CSR_WRITE_4(sc, BWI_MAC_TMPLT_CTRL, ofs); CSR_WRITE_4(sc, BWI_MAC_TMPLT_DATA, val); } void bwi_hostflags_write(struct bwi_mac *mac, uint64_t flags) { uint64_t val; val = flags & 0xffff; MOBJ_WRITE_2(mac, BWI_COMM_MOBJ, BWI_COMM_MOBJ_HFLAGS_LO, val); val = (flags >> 16) & 0xffff; MOBJ_WRITE_2(mac, BWI_COMM_MOBJ, BWI_COMM_MOBJ_HFLAGS_MI, val); /* HI has unclear meaning, so leave it as it is */ } uint64_t bwi_hostflags_read(struct bwi_mac *mac) { uint64_t flags, val; /* HI has unclear meaning, so don't touch it */ flags = 0; val = MOBJ_READ_2(mac, BWI_COMM_MOBJ, BWI_COMM_MOBJ_HFLAGS_MI); flags |= val << 16; val = MOBJ_READ_2(mac, BWI_COMM_MOBJ, BWI_COMM_MOBJ_HFLAGS_LO); flags |= val; return flags; } uint16_t bwi_memobj_read_2(struct bwi_mac *mac, uint16_t obj_id, uint16_t ofs0) { struct bwi_softc *sc = mac->mac_sc; uint32_t data_reg; int ofs; data_reg = BWI_MOBJ_DATA; ofs = ofs0 / 4; if (ofs0 % 4 != 0) data_reg = BWI_MOBJ_DATA_UNALIGN; CSR_WRITE_4(sc, BWI_MOBJ_CTRL, BWI_MOBJ_CTRL_VAL(obj_id, ofs)); return CSR_READ_2(sc, data_reg); } uint32_t bwi_memobj_read_4(struct bwi_mac *mac, uint16_t obj_id, uint16_t ofs0) { struct bwi_softc *sc = mac->mac_sc; int ofs; ofs = ofs0 / 4; if (ofs0 % 4 != 0) { uint32_t ret; CSR_WRITE_4(sc, BWI_MOBJ_CTRL, BWI_MOBJ_CTRL_VAL(obj_id, ofs)); ret = CSR_READ_2(sc, BWI_MOBJ_DATA_UNALIGN); ret <<= 16; CSR_WRITE_4(sc, BWI_MOBJ_CTRL, BWI_MOBJ_CTRL_VAL(obj_id, ofs + 1)); ret |= CSR_READ_2(sc, BWI_MOBJ_DATA); return ret; } else { CSR_WRITE_4(sc, BWI_MOBJ_CTRL, BWI_MOBJ_CTRL_VAL(obj_id, ofs)); return CSR_READ_4(sc, BWI_MOBJ_DATA); } } void bwi_memobj_write_2(struct bwi_mac *mac, uint16_t obj_id, uint16_t ofs0, uint16_t v) { struct bwi_softc *sc = mac->mac_sc; uint32_t data_reg; int ofs; data_reg = BWI_MOBJ_DATA; ofs = ofs0 / 4; if (ofs0 % 4 != 0) data_reg = BWI_MOBJ_DATA_UNALIGN; CSR_WRITE_4(sc, BWI_MOBJ_CTRL, BWI_MOBJ_CTRL_VAL(obj_id, ofs)); CSR_WRITE_2(sc, data_reg, v); } void bwi_memobj_write_4(struct bwi_mac *mac, uint16_t obj_id, uint16_t ofs0, uint32_t v) { struct bwi_softc *sc = mac->mac_sc; int ofs; ofs = ofs0 / 4; if (ofs0 % 4 != 0) { CSR_WRITE_4(sc, BWI_MOBJ_CTRL, BWI_MOBJ_CTRL_VAL(obj_id, ofs)); CSR_WRITE_2(sc, BWI_MOBJ_DATA_UNALIGN, v >> 16); CSR_WRITE_4(sc, BWI_MOBJ_CTRL, BWI_MOBJ_CTRL_VAL(obj_id, ofs + 1)); CSR_WRITE_2(sc, BWI_MOBJ_DATA, v & 0xffff); } else { CSR_WRITE_4(sc, BWI_MOBJ_CTRL, BWI_MOBJ_CTRL_VAL(obj_id, ofs)); CSR_WRITE_4(sc, BWI_MOBJ_DATA, v); } } int bwi_mac_lateattach(struct bwi_mac *mac) { int error; if (mac->mac_rev >= 5) CSR_READ_4(mac->mac_sc, BWI_STATE_HI); /* dummy read */ bwi_mac_reset(mac, 1); error = bwi_phy_attach(mac); if (error) return error; error = bwi_rf_attach(mac); if (error) return error; /* Link 11B/G PHY, unlink 11A PHY */ if (mac->mac_phy.phy_mode == IEEE80211_MODE_11A) bwi_mac_reset(mac, 0); else bwi_mac_reset(mac, 1); error = bwi_mac_test(mac); if (error) return error; error = bwi_mac_get_property(mac); if (error) return error; error = bwi_rf_map_txpower(mac); if (error) return error; bwi_rf_off(mac); CSR_WRITE_2(mac->mac_sc, BWI_BBP_ATTEN, BWI_BBP_ATTEN_MAGIC); bwi_regwin_disable(mac->mac_sc, &mac->mac_regwin, 0); return 0; } int bwi_mac_init(struct bwi_mac *mac) { struct bwi_softc *sc = mac->mac_sc; int error, i; /* Clear MAC/PHY/RF states */ bwi_mac_setup_tpctl(mac); bwi_rf_clear_state(&mac->mac_rf); bwi_phy_clear_state(&mac->mac_phy); /* Enable MAC and linked it to PHY */ if (!bwi_regwin_is_enabled(sc, &mac->mac_regwin)) bwi_mac_reset(mac, 1); /* Initialize backplane */ error = bwi_bus_init(sc, mac); if (error) return error; /* do timeout fixup */ if (sc->sc_bus_regwin.rw_rev <= 5 && sc->sc_bus_regwin.rw_type != BWI_REGWIN_T_BUSPCIE) { CSR_SETBITS_4(sc, BWI_CONF_LO, __SHIFTIN(BWI_CONF_LO_SERVTO, BWI_CONF_LO_SERVTO_MASK) | __SHIFTIN(BWI_CONF_LO_REQTO, BWI_CONF_LO_REQTO_MASK)); } /* Calibrate PHY */ error = bwi_phy_calibrate(mac); if (error) { device_printf(sc->sc_dev, "PHY calibrate failed\n"); return error; } /* Prepare to initialize firmware */ CSR_WRITE_4(sc, BWI_MAC_STATUS, BWI_MAC_STATUS_UCODE_JUMP0 | BWI_MAC_STATUS_IHREN); /* * Load and initialize firmwares */ error = bwi_mac_fw_load(mac); if (error) return error; error = bwi_mac_gpio_init(mac); if (error) return error; error = bwi_mac_fw_init(mac); if (error) return error; /* * Turn on RF */ bwi_rf_on(mac); /* TODO: LED, hardware rf enabled is only related to LED setting */ /* * Initialize PHY */ CSR_WRITE_2(sc, BWI_BBP_ATTEN, 0); bwi_phy_init(mac); /* TODO: interference mitigation */ /* * Setup antenna mode */ bwi_rf_set_ant_mode(mac, mac->mac_rf.rf_ant_mode); /* * Initialize operation mode (RX configuration) */ bwi_mac_opmode_init(mac); /* set up Beacon interval */ if (mac->mac_rev < 3) { CSR_WRITE_2(sc, 0x60e, 0); CSR_WRITE_2(sc, 0x610, 0x8000); CSR_WRITE_2(sc, 0x604, 0); CSR_WRITE_2(sc, 0x606, 0x200); } else { CSR_WRITE_4(sc, 0x188, 0x80000000); CSR_WRITE_4(sc, 0x18c, 0x2000000); } /* * Initialize TX/RX interrupts' mask */ CSR_WRITE_4(sc, BWI_MAC_INTR_STATUS, BWI_INTR_TIMER1); for (i = 0; i < BWI_TXRX_NRING; ++i) { uint32_t intrs; if (BWI_TXRX_IS_RX(i)) intrs = BWI_TXRX_RX_INTRS; else intrs = BWI_TXRX_TX_INTRS; CSR_WRITE_4(sc, BWI_TXRX_INTR_MASK(i), intrs); } /* allow the MAC to control the PHY clock (dynamic on/off) */ CSR_SETBITS_4(sc, BWI_STATE_LO, 0x100000); /* Setup MAC power up delay */ CSR_WRITE_2(sc, BWI_MAC_POWERUP_DELAY, sc->sc_pwron_delay); /* Set MAC regwin revision */ MOBJ_WRITE_2(mac, BWI_COMM_MOBJ, BWI_COMM_MOBJ_MACREV, mac->mac_rev); /* * Initialize host flags */ bwi_mac_hostflags_init(mac); /* * Initialize BSS parameters */ bwi_mac_bss_param_init(mac); /* * Initialize TX rings */ for (i = 0; i < BWI_TX_NRING; ++i) { error = sc->sc_init_tx_ring(sc, i); if (error) { device_printf(sc->sc_dev, "can't initialize %dth TX ring\n", i); return error; } } /* * Initialize RX ring */ error = sc->sc_init_rx_ring(sc); if (error) { device_printf(sc->sc_dev, "can't initialize RX ring\n"); return error; } /* * Initialize TX stats if the current MAC uses that */ if (mac->mac_flags & BWI_MAC_F_HAS_TXSTATS) { error = sc->sc_init_txstats(sc); if (error) { device_printf(sc->sc_dev, "can't initialize TX stats ring\n"); return error; } } /* update PRETBTT */ CSR_WRITE_2(sc, 0x612, 0x50); /* Force Pre-TBTT to 80? */ MOBJ_WRITE_2(mac, BWI_COMM_MOBJ, 0x416, 0x50); MOBJ_WRITE_2(mac, BWI_COMM_MOBJ, 0x414, 0x1f4); mac->mac_flags |= BWI_MAC_F_INITED; return 0; } void bwi_mac_reset(struct bwi_mac *mac, int link_phy) { struct bwi_softc *sc = mac->mac_sc; uint32_t flags, state_lo, status; flags = BWI_STATE_LO_FLAG_PHYRST | BWI_STATE_LO_FLAG_PHYCLKEN; if (link_phy) flags |= BWI_STATE_LO_FLAG_PHYLNK; bwi_regwin_enable(sc, &mac->mac_regwin, flags); DELAY(2000); state_lo = CSR_READ_4(sc, BWI_STATE_LO); state_lo |= BWI_STATE_LO_GATED_CLOCK; state_lo &= ~__SHIFTIN(BWI_STATE_LO_FLAG_PHYRST, BWI_STATE_LO_FLAGS_MASK); CSR_WRITE_4(sc, BWI_STATE_LO, state_lo); /* Flush pending bus write */ CSR_READ_4(sc, BWI_STATE_LO); DELAY(1000); state_lo &= ~BWI_STATE_LO_GATED_CLOCK; CSR_WRITE_4(sc, BWI_STATE_LO, state_lo); /* Flush pending bus write */ CSR_READ_4(sc, BWI_STATE_LO); DELAY(1000); CSR_WRITE_2(sc, BWI_BBP_ATTEN, 0); status = CSR_READ_4(sc, BWI_MAC_STATUS); status |= BWI_MAC_STATUS_IHREN; if (link_phy) status |= BWI_MAC_STATUS_PHYLNK; else status &= ~BWI_MAC_STATUS_PHYLNK; CSR_WRITE_4(sc, BWI_MAC_STATUS, status); if (link_phy) { DPRINTF(sc, BWI_DBG_MAC | BWI_DBG_ATTACH | BWI_DBG_INIT, "%s\n", "PHY is linked"); mac->mac_phy.phy_flags |= BWI_PHY_F_LINKED; } else { DPRINTF(sc, BWI_DBG_MAC | BWI_DBG_ATTACH | BWI_DBG_INIT, "%s\n", "PHY is unlinked"); mac->mac_phy.phy_flags &= ~BWI_PHY_F_LINKED; } } void bwi_mac_set_tpctl_11bg(struct bwi_mac *mac, const struct bwi_tpctl *new_tpctl) { struct bwi_rf *rf = &mac->mac_rf; struct bwi_tpctl *tpctl = &mac->mac_tpctl; if (new_tpctl != NULL) { KASSERT(new_tpctl->bbp_atten <= BWI_BBP_ATTEN_MAX, ("bbp_atten %d", new_tpctl->bbp_atten)); KASSERT(new_tpctl->rf_atten <= (rf->rf_rev < 6 ? BWI_RF_ATTEN_MAX0 : BWI_RF_ATTEN_MAX1), ("rf_atten %d", new_tpctl->rf_atten)); KASSERT(new_tpctl->tp_ctrl1 <= BWI_TPCTL1_MAX, ("tp_ctrl1 %d", new_tpctl->tp_ctrl1)); tpctl->bbp_atten = new_tpctl->bbp_atten; tpctl->rf_atten = new_tpctl->rf_atten; tpctl->tp_ctrl1 = new_tpctl->tp_ctrl1; } /* Set BBP attenuation */ bwi_phy_set_bbp_atten(mac, tpctl->bbp_atten); /* Set RF attenuation */ RF_WRITE(mac, BWI_RFR_ATTEN, tpctl->rf_atten); MOBJ_WRITE_2(mac, BWI_COMM_MOBJ, BWI_COMM_MOBJ_RF_ATTEN, tpctl->rf_atten); /* Set TX power */ if (rf->rf_type == BWI_RF_T_BCM2050) { RF_FILT_SETBITS(mac, BWI_RFR_TXPWR, ~BWI_RFR_TXPWR1_MASK, __SHIFTIN(tpctl->tp_ctrl1, BWI_RFR_TXPWR1_MASK)); } /* Adjust RF Local Oscillator */ if (mac->mac_phy.phy_mode == IEEE80211_MODE_11G) bwi_rf_lo_adjust(mac, tpctl); } static int bwi_mac_test(struct bwi_mac *mac) { struct bwi_softc *sc = mac->mac_sc; uint32_t orig_val, val; #define TEST_VAL1 0xaa5555aa #define TEST_VAL2 0x55aaaa55 /* Save it for later restoring */ orig_val = MOBJ_READ_4(mac, BWI_COMM_MOBJ, 0); /* Test 1 */ MOBJ_WRITE_4(mac, BWI_COMM_MOBJ, 0, TEST_VAL1); val = MOBJ_READ_4(mac, BWI_COMM_MOBJ, 0); if (val != TEST_VAL1) { device_printf(sc->sc_dev, "TEST1 failed\n"); return ENXIO; } /* Test 2 */ MOBJ_WRITE_4(mac, BWI_COMM_MOBJ, 0, TEST_VAL2); val = MOBJ_READ_4(mac, BWI_COMM_MOBJ, 0); if (val != TEST_VAL2) { device_printf(sc->sc_dev, "TEST2 failed\n"); return ENXIO; } /* Restore to the original value */ MOBJ_WRITE_4(mac, BWI_COMM_MOBJ, 0, orig_val); val = CSR_READ_4(sc, BWI_MAC_STATUS); if ((val & ~BWI_MAC_STATUS_PHYLNK) != BWI_MAC_STATUS_IHREN) { device_printf(sc->sc_dev, "%s failed, MAC status 0x%08x\n", __func__, val); return ENXIO; } val = CSR_READ_4(sc, BWI_MAC_INTR_STATUS); if (val != 0) { device_printf(sc->sc_dev, "%s failed, intr status %08x\n", __func__, val); return ENXIO; } #undef TEST_VAL2 #undef TEST_VAL1 return 0; } static void bwi_mac_setup_tpctl(struct bwi_mac *mac) { struct bwi_softc *sc = mac->mac_sc; struct bwi_rf *rf = &mac->mac_rf; struct bwi_phy *phy = &mac->mac_phy; struct bwi_tpctl *tpctl = &mac->mac_tpctl; /* Calc BBP attenuation */ if (rf->rf_type == BWI_RF_T_BCM2050 && rf->rf_rev < 6) tpctl->bbp_atten = 0; else tpctl->bbp_atten = 2; /* Calc TX power CTRL1?? */ tpctl->tp_ctrl1 = 0; if (rf->rf_type == BWI_RF_T_BCM2050) { if (rf->rf_rev == 1) tpctl->tp_ctrl1 = 3; else if (rf->rf_rev < 6) tpctl->tp_ctrl1 = 2; else if (rf->rf_rev == 8) tpctl->tp_ctrl1 = 1; } /* Empty TX power CTRL2?? */ tpctl->tp_ctrl2 = 0xffff; /* * Calc RF attenuation */ if (phy->phy_mode == IEEE80211_MODE_11A) { tpctl->rf_atten = 0x60; goto back; } if (BWI_IS_BRCM_BCM4309G(sc) && sc->sc_pci_revid < 0x51) { tpctl->rf_atten = sc->sc_pci_revid < 0x43 ? 2 : 3; goto back; } tpctl->rf_atten = 5; if (rf->rf_type != BWI_RF_T_BCM2050) { if (rf->rf_type == BWI_RF_T_BCM2053 && rf->rf_rev == 1) tpctl->rf_atten = 6; goto back; } /* * NB: If we reaches here and the card is BRCM_BCM4309G, * then the card's PCI revision must >= 0x51 */ /* BCM2050 RF */ switch (rf->rf_rev) { case 1: if (phy->phy_mode == IEEE80211_MODE_11G) { if (BWI_IS_BRCM_BCM4309G(sc) || BWI_IS_BRCM_BU4306(sc)) tpctl->rf_atten = 3; else tpctl->rf_atten = 1; } else { if (BWI_IS_BRCM_BCM4309G(sc)) tpctl->rf_atten = 7; else tpctl->rf_atten = 6; } break; case 2: if (phy->phy_mode == IEEE80211_MODE_11G) { /* * NOTE: Order of following conditions is critical */ if (BWI_IS_BRCM_BCM4309G(sc)) tpctl->rf_atten = 3; else if (BWI_IS_BRCM_BU4306(sc)) tpctl->rf_atten = 5; else if (sc->sc_bbp_id == BWI_BBPID_BCM4320) tpctl->rf_atten = 4; else tpctl->rf_atten = 3; } else { tpctl->rf_atten = 6; } break; case 4: case 5: tpctl->rf_atten = 1; break; case 8: tpctl->rf_atten = 0x1a; break; } back: DPRINTF(sc, BWI_DBG_MAC | BWI_DBG_INIT | BWI_DBG_TXPOWER, "bbp atten: %u, rf atten: %u, ctrl1: %u, ctrl2: %u\n", tpctl->bbp_atten, tpctl->rf_atten, tpctl->tp_ctrl1, tpctl->tp_ctrl2); } void bwi_mac_dummy_xmit(struct bwi_mac *mac) { #define PACKET_LEN 5 static const uint32_t packet_11a[PACKET_LEN] = { 0x000201cc, 0x00d40000, 0x00000000, 0x01000000, 0x00000000 }; static const uint32_t packet_11bg[PACKET_LEN] = { 0x000b846e, 0x00d40000, 0x00000000, 0x01000000, 0x00000000 }; struct bwi_softc *sc = mac->mac_sc; struct bwi_rf *rf = &mac->mac_rf; const uint32_t *packet; uint16_t val_50c; int wait_max, i; if (mac->mac_phy.phy_mode == IEEE80211_MODE_11A) { wait_max = 30; packet = packet_11a; val_50c = 1; } else { wait_max = 250; packet = packet_11bg; val_50c = 0; } for (i = 0; i < PACKET_LEN; ++i) TMPLT_WRITE_4(mac, i * 4, packet[i]); CSR_READ_4(sc, BWI_MAC_STATUS); /* dummy read */ CSR_WRITE_2(sc, 0x568, 0); CSR_WRITE_2(sc, 0x7c0, 0); CSR_WRITE_2(sc, 0x50c, val_50c); CSR_WRITE_2(sc, 0x508, 0); CSR_WRITE_2(sc, 0x50a, 0); CSR_WRITE_2(sc, 0x54c, 0); CSR_WRITE_2(sc, 0x56a, 0x14); CSR_WRITE_2(sc, 0x568, 0x826); CSR_WRITE_2(sc, 0x500, 0); CSR_WRITE_2(sc, 0x502, 0x30); if (rf->rf_type == BWI_RF_T_BCM2050 && rf->rf_rev <= 5) RF_WRITE(mac, 0x51, 0x17); for (i = 0; i < wait_max; ++i) { if (CSR_READ_2(sc, 0x50e) & 0x80) break; DELAY(10); } for (i = 0; i < 10; ++i) { if (CSR_READ_2(sc, 0x50e) & 0x400) break; DELAY(10); } for (i = 0; i < 10; ++i) { if ((CSR_READ_2(sc, 0x690) & 0x100) == 0) break; DELAY(10); } if (rf->rf_type == BWI_RF_T_BCM2050 && rf->rf_rev <= 5) RF_WRITE(mac, 0x51, 0x37); #undef PACKET_LEN } void bwi_mac_init_tpctl_11bg(struct bwi_mac *mac) { struct bwi_softc *sc = mac->mac_sc; struct bwi_phy *phy = &mac->mac_phy; struct bwi_rf *rf = &mac->mac_rf; struct bwi_tpctl tpctl_orig; int restore_tpctl = 0; KASSERT(phy->phy_mode != IEEE80211_MODE_11A, ("phy_mode %d", phy->phy_mode)); if (BWI_IS_BRCM_BU4306(sc)) return; PHY_WRITE(mac, 0x28, 0x8018); CSR_CLRBITS_2(sc, BWI_BBP_ATTEN, 0x20); if (phy->phy_mode == IEEE80211_MODE_11G) { if ((phy->phy_flags & BWI_PHY_F_LINKED) == 0) return; PHY_WRITE(mac, 0x47a, 0xc111); } if (mac->mac_flags & BWI_MAC_F_TPCTL_INITED) return; if (phy->phy_mode == IEEE80211_MODE_11B && phy->phy_rev >= 2 && rf->rf_type == BWI_RF_T_BCM2050) { RF_SETBITS(mac, 0x76, 0x84); } else { struct bwi_tpctl tpctl; /* Backup original TX power control variables */ bcopy(&mac->mac_tpctl, &tpctl_orig, sizeof(tpctl_orig)); restore_tpctl = 1; bcopy(&mac->mac_tpctl, &tpctl, sizeof(tpctl)); tpctl.bbp_atten = 11; tpctl.tp_ctrl1 = 0; #ifdef notyet if (rf->rf_rev >= 6 && rf->rf_rev <= 8) tpctl.rf_atten = 31; else #endif tpctl.rf_atten = 9; bwi_mac_set_tpctl_11bg(mac, &tpctl); } bwi_mac_dummy_xmit(mac); mac->mac_flags |= BWI_MAC_F_TPCTL_INITED; rf->rf_base_tssi = PHY_READ(mac, 0x29); DPRINTF(sc, BWI_DBG_MAC | BWI_DBG_INIT | BWI_DBG_TXPOWER, "base tssi %d\n", rf->rf_base_tssi); if (abs(rf->rf_base_tssi - rf->rf_idle_tssi) >= 20) { device_printf(sc->sc_dev, "base tssi measure failed\n"); mac->mac_flags |= BWI_MAC_F_TPCTL_ERROR; } if (restore_tpctl) bwi_mac_set_tpctl_11bg(mac, &tpctl_orig); else RF_CLRBITS(mac, 0x76, 0x84); bwi_rf_clear_tssi(mac); } void bwi_mac_detach(struct bwi_mac *mac) { bwi_mac_fw_free(mac); } static __inline int bwi_fwimage_is_valid(struct bwi_softc *sc, const struct firmware *fw, uint8_t fw_type) { const struct bwi_fwhdr *hdr; if (fw->datasize < sizeof(*hdr)) { device_printf(sc->sc_dev, "invalid firmware (%s): invalid size %zu\n", fw->name, fw->datasize); return 0; } hdr = (const struct bwi_fwhdr *)fw->data; if (fw_type != BWI_FW_T_IV) { /* * Don't verify IV's size, it has different meaning */ if (be32toh(hdr->fw_size) != fw->datasize - sizeof(*hdr)) { device_printf(sc->sc_dev, "invalid firmware (%s): size mismatch, " "fw %u, real %zu\n", fw->name, be32toh(hdr->fw_size), fw->datasize - sizeof(*hdr)); return 0; } } if (hdr->fw_type != fw_type) { device_printf(sc->sc_dev, "invalid firmware (%s): type mismatch, " "fw \'%c\', target \'%c\'\n", fw->name, hdr->fw_type, fw_type); return 0; } if (hdr->fw_gen != BWI_FW_GEN_1) { device_printf(sc->sc_dev, "invalid firmware (%s): wrong generation, " "fw %d, target %d\n", fw->name, hdr->fw_gen, BWI_FW_GEN_1); return 0; } return 1; } /* * XXX Error cleanup */ int bwi_mac_fw_alloc(struct bwi_mac *mac) { struct bwi_softc *sc = mac->mac_sc; char fwname[64]; int idx; /* * Try getting the firmware stub so firmware * module would be loaded automatically */ if (mac->mac_stub == NULL) { snprintf(fwname, sizeof(fwname), BWI_FW_STUB_PATH, sc->sc_fw_version); mac->mac_stub = firmware_get(fwname); if (mac->mac_stub == NULL) goto no_firmware; } if (mac->mac_ucode == NULL) { snprintf(fwname, sizeof(fwname), BWI_FW_UCODE_PATH, sc->sc_fw_version, mac->mac_rev >= 5 ? 5 : mac->mac_rev); mac->mac_ucode = firmware_get(fwname); if (mac->mac_ucode == NULL) goto no_firmware; if (!bwi_fwimage_is_valid(sc, mac->mac_ucode, BWI_FW_T_UCODE)) return EINVAL; } if (mac->mac_pcm == NULL) { snprintf(fwname, sizeof(fwname), BWI_FW_PCM_PATH, sc->sc_fw_version, mac->mac_rev < 5 ? 4 : 5); mac->mac_pcm = firmware_get(fwname); if (mac->mac_pcm == NULL) goto no_firmware; if (!bwi_fwimage_is_valid(sc, mac->mac_pcm, BWI_FW_T_PCM)) return EINVAL; } if (mac->mac_iv == NULL) { /* TODO: 11A */ if (mac->mac_rev == 2 || mac->mac_rev == 4) { idx = 2; } else if (mac->mac_rev >= 5 && mac->mac_rev <= 10) { idx = 5; } else { device_printf(sc->sc_dev, "no suitible IV for MAC rev %d\n", mac->mac_rev); return ENODEV; } snprintf(fwname, sizeof(fwname), BWI_FW_IV_PATH, sc->sc_fw_version, idx); mac->mac_iv = firmware_get(fwname); if (mac->mac_iv == NULL) goto no_firmware; if (!bwi_fwimage_is_valid(sc, mac->mac_iv, BWI_FW_T_IV)) return EINVAL; } if (mac->mac_iv_ext == NULL) { /* TODO: 11A */ if (mac->mac_rev == 2 || mac->mac_rev == 4 || mac->mac_rev >= 11) { /* No extended IV */ return (0); } else if (mac->mac_rev >= 5 && mac->mac_rev <= 10) { idx = 5; } else { device_printf(sc->sc_dev, "no suitible ExtIV for MAC rev %d\n", mac->mac_rev); return ENODEV; } snprintf(fwname, sizeof(fwname), BWI_FW_IV_EXT_PATH, sc->sc_fw_version, idx); mac->mac_iv_ext = firmware_get(fwname); if (mac->mac_iv_ext == NULL) goto no_firmware; if (!bwi_fwimage_is_valid(sc, mac->mac_iv_ext, BWI_FW_T_IV)) return EINVAL; } return (0); no_firmware: device_printf(sc->sc_dev, "request firmware %s failed\n", fwname); return (ENOENT); } static void bwi_mac_fw_free(struct bwi_mac *mac) { if (mac->mac_ucode != NULL) { firmware_put(mac->mac_ucode, FIRMWARE_UNLOAD); mac->mac_ucode = NULL; } if (mac->mac_pcm != NULL) { firmware_put(mac->mac_pcm, FIRMWARE_UNLOAD); mac->mac_pcm = NULL; } if (mac->mac_iv != NULL) { firmware_put(mac->mac_iv, FIRMWARE_UNLOAD); mac->mac_iv = NULL; } if (mac->mac_iv_ext != NULL) { firmware_put(mac->mac_iv_ext, FIRMWARE_UNLOAD); mac->mac_iv_ext = NULL; } if (mac->mac_stub != NULL) { firmware_put(mac->mac_stub, FIRMWARE_UNLOAD); mac->mac_stub = NULL; } } static int bwi_mac_fw_load(struct bwi_mac *mac) { struct bwi_softc *sc = mac->mac_sc; const uint32_t *fw; uint16_t fw_rev; int fw_len, i; /* * Load ucode image */ fw = (const uint32_t *) ((const uint8_t *)mac->mac_ucode->data + BWI_FWHDR_SZ); fw_len = (mac->mac_ucode->datasize - BWI_FWHDR_SZ) / sizeof(uint32_t); CSR_WRITE_4(sc, BWI_MOBJ_CTRL, BWI_MOBJ_CTRL_VAL( BWI_FW_UCODE_MOBJ | BWI_WR_MOBJ_AUTOINC, 0)); for (i = 0; i < fw_len; ++i) { CSR_WRITE_4(sc, BWI_MOBJ_DATA, be32toh(fw[i])); DELAY(10); } /* * Load PCM image */ fw = (const uint32_t *) ((const uint8_t *)mac->mac_pcm->data + BWI_FWHDR_SZ); fw_len = (mac->mac_pcm->datasize - BWI_FWHDR_SZ) / sizeof(uint32_t); CSR_WRITE_4(sc, BWI_MOBJ_CTRL, BWI_MOBJ_CTRL_VAL(BWI_FW_PCM_MOBJ, 0x01ea)); CSR_WRITE_4(sc, BWI_MOBJ_DATA, 0x4000); CSR_WRITE_4(sc, BWI_MOBJ_CTRL, BWI_MOBJ_CTRL_VAL(BWI_FW_PCM_MOBJ, 0x01eb)); for (i = 0; i < fw_len; ++i) { CSR_WRITE_4(sc, BWI_MOBJ_DATA, be32toh(fw[i])); DELAY(10); } CSR_WRITE_4(sc, BWI_MAC_INTR_STATUS, BWI_ALL_INTRS); CSR_WRITE_4(sc, BWI_MAC_STATUS, BWI_MAC_STATUS_UCODE_START | BWI_MAC_STATUS_IHREN | BWI_MAC_STATUS_INFRA); #define NRETRY 200 for (i = 0; i < NRETRY; ++i) { uint32_t intr_status; intr_status = CSR_READ_4(sc, BWI_MAC_INTR_STATUS); if (intr_status == BWI_INTR_READY) break; DELAY(10); } if (i == NRETRY) { device_printf(sc->sc_dev, "firmware (ucode&pcm) loading timed out\n"); return ETIMEDOUT; } #undef NRETRY CSR_READ_4(sc, BWI_MAC_INTR_STATUS); /* dummy read */ fw_rev = MOBJ_READ_2(mac, BWI_COMM_MOBJ, BWI_COMM_MOBJ_FWREV); if (fw_rev > BWI_FW_VERSION3_REVMAX) { device_printf(sc->sc_dev, "firmware version 4 is not supported yet\n"); return ENODEV; } device_printf(sc->sc_dev, "firmware rev 0x%04x, patch level 0x%04x\n", fw_rev, MOBJ_READ_2(mac, BWI_COMM_MOBJ, BWI_COMM_MOBJ_FWPATCHLV)); return 0; } static int bwi_mac_gpio_init(struct bwi_mac *mac) { struct bwi_softc *sc = mac->mac_sc; struct bwi_regwin *old, *gpio_rw; uint32_t filt, bits; int error; CSR_CLRBITS_4(sc, BWI_MAC_STATUS, BWI_MAC_STATUS_GPOSEL_MASK); /* TODO:LED */ CSR_SETBITS_2(sc, BWI_MAC_GPIO_MASK, 0xf); filt = 0x1f; bits = 0xf; if (sc->sc_bbp_id == BWI_BBPID_BCM4301) { filt |= 0x60; bits |= 0x60; } if (sc->sc_card_flags & BWI_CARD_F_PA_GPIO9) { CSR_SETBITS_2(sc, BWI_MAC_GPIO_MASK, 0x200); filt |= 0x200; bits |= 0x200; } gpio_rw = BWI_GPIO_REGWIN(sc); error = bwi_regwin_switch(sc, gpio_rw, &old); if (error) return error; CSR_FILT_SETBITS_4(sc, BWI_GPIO_CTRL, filt, bits); return bwi_regwin_switch(sc, old, NULL); } static int bwi_mac_gpio_fini(struct bwi_mac *mac) { struct bwi_softc *sc = mac->mac_sc; struct bwi_regwin *old, *gpio_rw; int error; gpio_rw = BWI_GPIO_REGWIN(sc); error = bwi_regwin_switch(sc, gpio_rw, &old); if (error) return error; CSR_WRITE_4(sc, BWI_GPIO_CTRL, 0); return bwi_regwin_switch(sc, old, NULL); } static int bwi_mac_fw_load_iv(struct bwi_mac *mac, const struct firmware *fw) { struct bwi_softc *sc = mac->mac_sc; const struct bwi_fwhdr *hdr; const struct bwi_fw_iv *iv; int n, i, iv_img_size; /* Get the number of IVs in the IV image */ hdr = (const struct bwi_fwhdr *)fw->data; n = be32toh(hdr->fw_iv_cnt); DPRINTF(sc, BWI_DBG_MAC | BWI_DBG_INIT | BWI_DBG_FIRMWARE, "IV count %d\n", n); /* Calculate the IV image size, for later sanity check */ iv_img_size = fw->datasize - sizeof(*hdr); /* Locate the first IV */ iv = (const struct bwi_fw_iv *) ((const uint8_t *)fw->data + sizeof(*hdr)); for (i = 0; i < n; ++i) { uint16_t iv_ofs, ofs; int sz = 0; if (iv_img_size < sizeof(iv->iv_ofs)) { device_printf(sc->sc_dev, "invalid IV image, ofs\n"); return EINVAL; } iv_img_size -= sizeof(iv->iv_ofs); sz += sizeof(iv->iv_ofs); iv_ofs = be16toh(iv->iv_ofs); ofs = __SHIFTOUT(iv_ofs, BWI_FW_IV_OFS_MASK); if (ofs >= 0x1000) { device_printf(sc->sc_dev, "invalid ofs (0x%04x) " "for %dth iv\n", ofs, i); return EINVAL; } if (iv_ofs & BWI_FW_IV_IS_32BIT) { uint32_t val32; if (iv_img_size < sizeof(iv->iv_val.val32)) { device_printf(sc->sc_dev, "invalid IV image, val32\n"); return EINVAL; } iv_img_size -= sizeof(iv->iv_val.val32); sz += sizeof(iv->iv_val.val32); val32 = be32toh(iv->iv_val.val32); CSR_WRITE_4(sc, ofs, val32); } else { uint16_t val16; if (iv_img_size < sizeof(iv->iv_val.val16)) { device_printf(sc->sc_dev, "invalid IV image, val16\n"); return EINVAL; } iv_img_size -= sizeof(iv->iv_val.val16); sz += sizeof(iv->iv_val.val16); val16 = be16toh(iv->iv_val.val16); CSR_WRITE_2(sc, ofs, val16); } iv = (const struct bwi_fw_iv *)((const uint8_t *)iv + sz); } if (iv_img_size != 0) { device_printf(sc->sc_dev, "invalid IV image, size left %d\n", iv_img_size); return EINVAL; } return 0; } static int bwi_mac_fw_init(struct bwi_mac *mac) { device_t dev = mac->mac_sc->sc_dev; int error; error = bwi_mac_fw_load_iv(mac, mac->mac_iv); if (error) { device_printf(dev, "load IV failed\n"); return error; } if (mac->mac_iv_ext != NULL) { error = bwi_mac_fw_load_iv(mac, mac->mac_iv_ext); if (error) device_printf(dev, "load ExtIV failed\n"); } return error; } static void bwi_mac_opmode_init(struct bwi_mac *mac) { struct bwi_softc *sc = mac->mac_sc; struct ieee80211com *ic = &sc->sc_ic; uint32_t mac_status; uint16_t pre_tbtt; CSR_CLRBITS_4(sc, BWI_MAC_STATUS, BWI_MAC_STATUS_INFRA); CSR_SETBITS_4(sc, BWI_MAC_STATUS, BWI_MAC_STATUS_INFRA); /* Set probe resp timeout to infinite */ MOBJ_WRITE_2(mac, BWI_COMM_MOBJ, BWI_COMM_MOBJ_PROBE_RESP_TO, 0); /* * TODO: factor out following part */ mac_status = CSR_READ_4(sc, BWI_MAC_STATUS); mac_status &= ~(BWI_MAC_STATUS_OPMODE_HOSTAP | BWI_MAC_STATUS_PASS_CTL | BWI_MAC_STATUS_PASS_BCN | BWI_MAC_STATUS_PASS_BADPLCP | BWI_MAC_STATUS_PASS_BADFCS | BWI_MAC_STATUS_PROMISC); mac_status |= BWI_MAC_STATUS_INFRA; /* Always turn on PROMISC on old hardware */ if (mac->mac_rev < 5) mac_status |= BWI_MAC_STATUS_PROMISC; switch (ic->ic_opmode) { case IEEE80211_M_IBSS: mac_status &= ~BWI_MAC_STATUS_INFRA; break; case IEEE80211_M_HOSTAP: mac_status |= BWI_MAC_STATUS_OPMODE_HOSTAP; break; case IEEE80211_M_MONITOR: #if 0 /* Do you want data from your microwave oven? */ mac_status |= BWI_MAC_STATUS_PASS_CTL | BWI_MAC_STATUS_PASS_BADPLCP | BWI_MAC_STATUS_PASS_BADFCS; #else mac_status |= BWI_MAC_STATUS_PASS_CTL; #endif /* Promisc? */ break; default: break; } if (ic->ic_promisc > 0) mac_status |= BWI_MAC_STATUS_PROMISC; CSR_WRITE_4(sc, BWI_MAC_STATUS, mac_status); if (ic->ic_opmode != IEEE80211_M_IBSS && ic->ic_opmode != IEEE80211_M_HOSTAP) { if (sc->sc_bbp_id == BWI_BBPID_BCM4306 && sc->sc_bbp_rev == 3) pre_tbtt = 100; else pre_tbtt = 50; } else { pre_tbtt = 2; } CSR_WRITE_2(sc, BWI_MAC_PRE_TBTT, pre_tbtt); } static void bwi_mac_hostflags_init(struct bwi_mac *mac) { struct bwi_softc *sc = mac->mac_sc; struct bwi_phy *phy = &mac->mac_phy; struct bwi_rf *rf = &mac->mac_rf; uint64_t host_flags; if (phy->phy_mode == IEEE80211_MODE_11A) return; host_flags = HFLAGS_READ(mac); host_flags |= BWI_HFLAG_SYM_WA; if (phy->phy_mode == IEEE80211_MODE_11G) { if (phy->phy_rev == 1) host_flags |= BWI_HFLAG_GDC_WA; if (sc->sc_card_flags & BWI_CARD_F_PA_GPIO9) host_flags |= BWI_HFLAG_OFDM_PA; } else if (phy->phy_mode == IEEE80211_MODE_11B) { if (phy->phy_rev >= 2 && rf->rf_type == BWI_RF_T_BCM2050) host_flags &= ~BWI_HFLAG_GDC_WA; } else { panic("unknown PHY mode %u\n", phy->phy_mode); } HFLAGS_WRITE(mac, host_flags); } static void bwi_mac_bss_param_init(struct bwi_mac *mac) { struct bwi_softc *sc = mac->mac_sc; struct bwi_phy *phy = &mac->mac_phy; struct ieee80211com *ic = &sc->sc_ic; const struct ieee80211_rate_table *rt; struct bwi_retry_lim lim; uint16_t cw_min; /* * Set short/long retry limits */ bzero(&lim, sizeof(lim)); lim.shretry = BWI_SHRETRY; lim.shretry_fb = BWI_SHRETRY_FB; lim.lgretry = BWI_LGRETRY; lim.lgretry_fb = BWI_LGRETRY_FB; bwi_mac_set_retry_lim(mac, &lim); /* * Implicitly prevent firmware from sending probe response * by setting its "probe response timeout" to 1us. */ MOBJ_WRITE_2(mac, BWI_COMM_MOBJ, BWI_COMM_MOBJ_PROBE_RESP_TO, 1); /* * XXX MAC level acknowledge and CW min/max should depend * on the char rateset of the IBSS/BSS to join. * XXX this is all wrong; should be done on channel change */ if (phy->phy_mode == IEEE80211_MODE_11B) { rt = ieee80211_get_ratetable( ieee80211_find_channel(ic, 2412, IEEE80211_CHAN_B)); bwi_mac_set_ackrates(mac, rt, &ic->ic_sup_rates[IEEE80211_MODE_11B]); } else { rt = ieee80211_get_ratetable( ieee80211_find_channel(ic, 2412, IEEE80211_CHAN_G)); bwi_mac_set_ackrates(mac, rt, &ic->ic_sup_rates[IEEE80211_MODE_11G]); } /* * Set CW min */ if (phy->phy_mode == IEEE80211_MODE_11B) cw_min = IEEE80211_CW_MIN_0; else cw_min = IEEE80211_CW_MIN_1; MOBJ_WRITE_2(mac, BWI_80211_MOBJ, BWI_80211_MOBJ_CWMIN, cw_min); /* * Set CW max */ MOBJ_WRITE_2(mac, BWI_80211_MOBJ, BWI_80211_MOBJ_CWMAX, IEEE80211_CW_MAX); } static void bwi_mac_set_retry_lim(struct bwi_mac *mac, const struct bwi_retry_lim *lim) { /* Short/Long retry limit */ MOBJ_WRITE_2(mac, BWI_80211_MOBJ, BWI_80211_MOBJ_SHRETRY, lim->shretry); MOBJ_WRITE_2(mac, BWI_80211_MOBJ, BWI_80211_MOBJ_LGRETRY, lim->lgretry); /* Short/Long retry fallback limit */ MOBJ_WRITE_2(mac, BWI_COMM_MOBJ, BWI_COMM_MOBJ_SHRETRY_FB, lim->shretry_fb); MOBJ_WRITE_2(mac, BWI_COMM_MOBJ, BWI_COMM_MOBJ_LGRETEY_FB, lim->lgretry_fb); } static void bwi_mac_set_ackrates(struct bwi_mac *mac, const struct ieee80211_rate_table *rt, const struct ieee80211_rateset *rs) { int i; /* XXX not standard conforming */ for (i = 0; i < rs->rs_nrates; ++i) { enum ieee80211_phytype modtype; uint16_t ofs; modtype = ieee80211_rate2phytype(rt, rs->rs_rates[i] & IEEE80211_RATE_VAL); switch (modtype) { case IEEE80211_T_DS: ofs = 0x4c0; break; case IEEE80211_T_OFDM: ofs = 0x480; break; default: panic("unsupported modtype %u\n", modtype); } ofs += 2*(ieee80211_rate2plcp( rs->rs_rates[i] & IEEE80211_RATE_VAL, modtype) & 0xf); MOBJ_WRITE_2(mac, BWI_COMM_MOBJ, ofs + 0x20, MOBJ_READ_2(mac, BWI_COMM_MOBJ, ofs)); } } int bwi_mac_start(struct bwi_mac *mac) { struct bwi_softc *sc = mac->mac_sc; CSR_SETBITS_4(sc, BWI_MAC_STATUS, BWI_MAC_STATUS_ENABLE); CSR_WRITE_4(sc, BWI_MAC_INTR_STATUS, BWI_INTR_READY); /* Flush pending bus writes */ CSR_READ_4(sc, BWI_MAC_STATUS); CSR_READ_4(sc, BWI_MAC_INTR_STATUS); return bwi_mac_config_ps(mac); } int bwi_mac_stop(struct bwi_mac *mac) { struct bwi_softc *sc = mac->mac_sc; int error, i; error = bwi_mac_config_ps(mac); if (error) return error; CSR_CLRBITS_4(sc, BWI_MAC_STATUS, BWI_MAC_STATUS_ENABLE); /* Flush pending bus write */ CSR_READ_4(sc, BWI_MAC_STATUS); #define NRETRY 10000 for (i = 0; i < NRETRY; ++i) { if (CSR_READ_4(sc, BWI_MAC_INTR_STATUS) & BWI_INTR_READY) break; DELAY(1); } if (i == NRETRY) { device_printf(sc->sc_dev, "can't stop MAC\n"); return ETIMEDOUT; } #undef NRETRY return 0; } int bwi_mac_config_ps(struct bwi_mac *mac) { struct bwi_softc *sc = mac->mac_sc; uint32_t status; status = CSR_READ_4(sc, BWI_MAC_STATUS); status &= ~BWI_MAC_STATUS_HW_PS; status |= BWI_MAC_STATUS_WAKEUP; CSR_WRITE_4(sc, BWI_MAC_STATUS, status); /* Flush pending bus write */ CSR_READ_4(sc, BWI_MAC_STATUS); if (mac->mac_rev >= 5) { int i; #define NRETRY 100 for (i = 0; i < NRETRY; ++i) { if (MOBJ_READ_2(mac, BWI_COMM_MOBJ, BWI_COMM_MOBJ_UCODE_STATE) != BWI_UCODE_STATE_PS) break; DELAY(10); } if (i == NRETRY) { device_printf(sc->sc_dev, "config PS failed\n"); return ETIMEDOUT; } #undef NRETRY } return 0; } void bwi_mac_reset_hwkeys(struct bwi_mac *mac) { /* TODO: firmware crypto */ MOBJ_READ_2(mac, BWI_COMM_MOBJ, BWI_COMM_MOBJ_KEYTABLE_OFS); } void bwi_mac_shutdown(struct bwi_mac *mac) { struct bwi_softc *sc = mac->mac_sc; int i; if (mac->mac_flags & BWI_MAC_F_HAS_TXSTATS) sc->sc_free_txstats(sc); sc->sc_free_rx_ring(sc); for (i = 0; i < BWI_TX_NRING; ++i) sc->sc_free_tx_ring(sc, i); bwi_rf_off(mac); /* TODO:LED */ bwi_mac_gpio_fini(mac); bwi_rf_off(mac); /* XXX again */ CSR_WRITE_2(sc, BWI_BBP_ATTEN, BWI_BBP_ATTEN_MAGIC); bwi_regwin_disable(sc, &mac->mac_regwin, 0); mac->mac_flags &= ~BWI_MAC_F_INITED; } static int bwi_mac_get_property(struct bwi_mac *mac) { struct bwi_softc *sc = mac->mac_sc; enum bwi_bus_space old_bus_space; uint32_t val; /* * Byte swap */ val = CSR_READ_4(sc, BWI_MAC_STATUS); if (val & BWI_MAC_STATUS_BSWAP) { DPRINTF(sc, BWI_DBG_MAC | BWI_DBG_ATTACH, "%s\n", "need byte swap"); mac->mac_flags |= BWI_MAC_F_BSWAP; } /* * DMA address space */ old_bus_space = sc->sc_bus_space; val = CSR_READ_4(sc, BWI_STATE_HI); if (__SHIFTOUT(val, BWI_STATE_HI_FLAGS_MASK) & BWI_STATE_HI_FLAG_64BIT) { /* 64bit address */ sc->sc_bus_space = BWI_BUS_SPACE_64BIT; DPRINTF(sc, BWI_DBG_MAC | BWI_DBG_ATTACH, "%s\n", "64bit bus space"); } else { uint32_t txrx_reg = BWI_TXRX_CTRL_BASE + BWI_TX32_CTRL; CSR_WRITE_4(sc, txrx_reg, BWI_TXRX32_CTRL_ADDRHI_MASK); if (CSR_READ_4(sc, txrx_reg) & BWI_TXRX32_CTRL_ADDRHI_MASK) { /* 32bit address */ sc->sc_bus_space = BWI_BUS_SPACE_32BIT; DPRINTF(sc, BWI_DBG_MAC | BWI_DBG_ATTACH, "%s\n", "32bit bus space"); } else { /* 30bit address */ sc->sc_bus_space = BWI_BUS_SPACE_30BIT; DPRINTF(sc, BWI_DBG_MAC | BWI_DBG_ATTACH, "%s\n", "30bit bus space"); } } if (old_bus_space != 0 && old_bus_space != sc->sc_bus_space) { device_printf(sc->sc_dev, "MACs bus space mismatch!\n"); return ENXIO; } return 0; } void bwi_mac_updateslot(struct bwi_mac *mac, int shslot) { uint16_t slot_time; if (mac->mac_phy.phy_mode == IEEE80211_MODE_11B) return; if (shslot) slot_time = IEEE80211_DUR_SHSLOT; else slot_time = IEEE80211_DUR_SLOT; CSR_WRITE_2(mac->mac_sc, BWI_MAC_SLOTTIME, slot_time + BWI_MAC_SLOTTIME_ADJUST); MOBJ_WRITE_2(mac, BWI_COMM_MOBJ, BWI_COMM_MOBJ_SLOTTIME, slot_time); } int bwi_mac_attach(struct bwi_softc *sc, int id, uint8_t rev) { struct bwi_mac *mac; int i; KASSERT(sc->sc_nmac <= BWI_MAC_MAX && sc->sc_nmac >= 0, ("sc_nmac %d", sc->sc_nmac)); if (sc->sc_nmac == BWI_MAC_MAX) { device_printf(sc->sc_dev, "too many MACs\n"); return 0; } /* * More than one MAC is only supported by BCM4309 */ if (sc->sc_nmac != 0 && sc->sc_pci_did != PCI_PRODUCT_BROADCOM_BCM4309) { DPRINTF(sc, BWI_DBG_MAC | BWI_DBG_ATTACH, "%s\n", "ignore second MAC"); return 0; } mac = &sc->sc_mac[sc->sc_nmac]; /* XXX will this happen? */ if (BWI_REGWIN_EXIST(&mac->mac_regwin)) { device_printf(sc->sc_dev, "%dth MAC already attached\n", sc->sc_nmac); return 0; } /* * Test whether the revision of this MAC is supported */ #define N(arr) (int)(sizeof(arr) / sizeof(arr[0])) for (i = 0; i < N(bwi_sup_macrev); ++i) { if (bwi_sup_macrev[i] == rev) break; } if (i == N(bwi_sup_macrev)) { device_printf(sc->sc_dev, "MAC rev %u is " "not supported\n", rev); return ENXIO; } #undef N BWI_CREATE_MAC(mac, sc, id, rev); sc->sc_nmac++; if (mac->mac_rev < 5) { mac->mac_flags |= BWI_MAC_F_HAS_TXSTATS; DPRINTF(sc, BWI_DBG_MAC | BWI_DBG_ATTACH, "%s\n", "has TX stats"); } else { mac->mac_flags |= BWI_MAC_F_PHYE_RESET; } device_printf(sc->sc_dev, "MAC: rev %u\n", rev); return 0; } static __inline void bwi_mac_balance_atten(int *bbp_atten0, int *rf_atten0) { int bbp_atten, rf_atten, rf_atten_lim = -1; bbp_atten = *bbp_atten0; rf_atten = *rf_atten0; /* * RF attenuation affects TX power BWI_RF_ATTEN_FACTOR times * as much as BBP attenuation, so we try our best to keep RF * attenuation within range. BBP attenuation will be clamped * later if it is out of range during balancing. * * BWI_RF_ATTEN_MAX0 is used as RF attenuation upper limit. */ /* * Use BBP attenuation to balance RF attenuation */ if (rf_atten < 0) rf_atten_lim = 0; else if (rf_atten > BWI_RF_ATTEN_MAX0) rf_atten_lim = BWI_RF_ATTEN_MAX0; if (rf_atten_lim >= 0) { bbp_atten += (BWI_RF_ATTEN_FACTOR * (rf_atten - rf_atten_lim)); rf_atten = rf_atten_lim; } /* * If possible, use RF attenuation to balance BBP attenuation * NOTE: RF attenuation is still kept within range. */ while (rf_atten < BWI_RF_ATTEN_MAX0 && bbp_atten > BWI_BBP_ATTEN_MAX) { bbp_atten -= BWI_RF_ATTEN_FACTOR; ++rf_atten; } while (rf_atten > 0 && bbp_atten < 0) { bbp_atten += BWI_RF_ATTEN_FACTOR; --rf_atten; } /* RF attenuation MUST be within range */ KASSERT(rf_atten >= 0 && rf_atten <= BWI_RF_ATTEN_MAX0, ("rf_atten %d", rf_atten)); /* * Clamp BBP attenuation */ if (bbp_atten < 0) bbp_atten = 0; else if (bbp_atten > BWI_BBP_ATTEN_MAX) bbp_atten = BWI_BBP_ATTEN_MAX; *rf_atten0 = rf_atten; *bbp_atten0 = bbp_atten; } static void bwi_mac_adjust_tpctl(struct bwi_mac *mac, int rf_atten_adj, int bbp_atten_adj) { struct bwi_softc *sc = mac->mac_sc; struct bwi_rf *rf = &mac->mac_rf; struct bwi_tpctl tpctl; int bbp_atten, rf_atten, tp_ctrl1; bcopy(&mac->mac_tpctl, &tpctl, sizeof(tpctl)); /* NOTE: Use signed value to do calulation */ bbp_atten = tpctl.bbp_atten; rf_atten = tpctl.rf_atten; tp_ctrl1 = tpctl.tp_ctrl1; bbp_atten += bbp_atten_adj; rf_atten += rf_atten_adj; bwi_mac_balance_atten(&bbp_atten, &rf_atten); if (rf->rf_type == BWI_RF_T_BCM2050 && rf->rf_rev == 2) { if (rf_atten <= 1) { if (tp_ctrl1 == 0) { tp_ctrl1 = 3; bbp_atten += 2; rf_atten += 2; } else if (sc->sc_card_flags & BWI_CARD_F_PA_GPIO9) { bbp_atten += (BWI_RF_ATTEN_FACTOR * (rf_atten - 2)); rf_atten = 2; } } else if (rf_atten > 4 && tp_ctrl1 != 0) { tp_ctrl1 = 0; if (bbp_atten < 3) { bbp_atten += 2; rf_atten -= 3; } else { bbp_atten -= 2; rf_atten -= 2; } } bwi_mac_balance_atten(&bbp_atten, &rf_atten); } tpctl.bbp_atten = bbp_atten; tpctl.rf_atten = rf_atten; tpctl.tp_ctrl1 = tp_ctrl1; bwi_mac_lock(mac); bwi_mac_set_tpctl_11bg(mac, &tpctl); bwi_mac_unlock(mac); } /* * http://bcm-specs.sipsolutions.net/RecalculateTransmissionPower */ void bwi_mac_calibrate_txpower(struct bwi_mac *mac, enum bwi_txpwrcb_type type) { struct bwi_softc *sc = mac->mac_sc; struct bwi_rf *rf = &mac->mac_rf; int8_t tssi[4], tssi_avg, cur_txpwr; int error, i, ofdm_tssi; int txpwr_diff, rf_atten_adj, bbp_atten_adj; if (!sc->sc_txpwr_calib) return; if (mac->mac_flags & BWI_MAC_F_TPCTL_ERROR) { DPRINTF(sc, BWI_DBG_MAC | BWI_DBG_TXPOWER, "%s\n", "tpctl error happened, can't set txpower"); return; } if (BWI_IS_BRCM_BU4306(sc)) { DPRINTF(sc, BWI_DBG_MAC | BWI_DBG_TXPOWER, "%s\n", "BU4306, can't set txpower"); return; } /* * Save latest TSSI and reset the related memory objects */ ofdm_tssi = 0; error = bwi_rf_get_latest_tssi(mac, tssi, BWI_COMM_MOBJ_TSSI_DS); if (error) { DPRINTF(sc, BWI_DBG_MAC | BWI_DBG_TXPOWER, "%s\n", "no DS tssi"); if (mac->mac_phy.phy_mode == IEEE80211_MODE_11B) { if (type == BWI_TXPWR_FORCE) { rf_atten_adj = 0; bbp_atten_adj = 1; goto calib; } else { return; } } error = bwi_rf_get_latest_tssi(mac, tssi, BWI_COMM_MOBJ_TSSI_OFDM); if (error) { DPRINTF(sc, BWI_DBG_MAC | BWI_DBG_TXPOWER, "%s\n", "no OFDM tssi"); if (type == BWI_TXPWR_FORCE) { rf_atten_adj = 0; bbp_atten_adj = 1; goto calib; } else { return; } } for (i = 0; i < 4; ++i) { tssi[i] += 0x20; tssi[i] &= 0x3f; } ofdm_tssi = 1; } bwi_rf_clear_tssi(mac); DPRINTF(sc, BWI_DBG_MAC | BWI_DBG_TXPOWER, "tssi0 %d, tssi1 %d, tssi2 %d, tssi3 %d\n", tssi[0], tssi[1], tssi[2], tssi[3]); /* * Calculate RF/BBP attenuation adjustment based on * the difference between desired TX power and sampled * TX power. */ /* +8 == "each incremented by 1/2" */ tssi_avg = (tssi[0] + tssi[1] + tssi[2] + tssi[3] + 8) / 4; if (ofdm_tssi && (HFLAGS_READ(mac) & BWI_HFLAG_PWR_BOOST_DS)) tssi_avg -= 13; DPRINTF(sc, BWI_DBG_MAC | BWI_DBG_TXPOWER, "tssi avg %d\n", tssi_avg); error = bwi_rf_tssi2dbm(mac, tssi_avg, &cur_txpwr); if (error) return; DPRINTF(sc, BWI_DBG_MAC | BWI_DBG_TXPOWER, "current txpower %d\n", cur_txpwr); txpwr_diff = rf->rf_txpower_max - cur_txpwr; /* XXX ni_txpower */ rf_atten_adj = -howmany(txpwr_diff, 8); if (type == BWI_TXPWR_INIT) { /* * Move toward EEPROM max TX power as fast as we can */ bbp_atten_adj = -txpwr_diff; } else { bbp_atten_adj = -(txpwr_diff / 2); } bbp_atten_adj -= (BWI_RF_ATTEN_FACTOR * rf_atten_adj); if (rf_atten_adj == 0 && bbp_atten_adj == 0) { DPRINTF(sc, BWI_DBG_MAC | BWI_DBG_TXPOWER, "%s\n", "no need to adjust RF/BBP attenuation"); /* TODO: LO */ return; } calib: DPRINTF(sc, BWI_DBG_MAC | BWI_DBG_TXPOWER, "rf atten adjust %d, bbp atten adjust %d\n", rf_atten_adj, bbp_atten_adj); bwi_mac_adjust_tpctl(mac, rf_atten_adj, bbp_atten_adj); /* TODO: LO */ } static void bwi_mac_lock(struct bwi_mac *mac) { struct bwi_softc *sc = mac->mac_sc; struct ieee80211com *ic = &sc->sc_ic; KASSERT((mac->mac_flags & BWI_MAC_F_LOCKED) == 0, ("mac_flags 0x%x", mac->mac_flags)); if (mac->mac_rev < 3) bwi_mac_stop(mac); else if (ic->ic_opmode != IEEE80211_M_HOSTAP) bwi_mac_config_ps(mac); CSR_SETBITS_4(sc, BWI_MAC_STATUS, BWI_MAC_STATUS_RFLOCK); /* Flush pending bus write */ CSR_READ_4(sc, BWI_MAC_STATUS); DELAY(10); mac->mac_flags |= BWI_MAC_F_LOCKED; } static void bwi_mac_unlock(struct bwi_mac *mac) { struct bwi_softc *sc = mac->mac_sc; struct ieee80211com *ic = &sc->sc_ic; KASSERT(mac->mac_flags & BWI_MAC_F_LOCKED, ("mac_flags 0x%x", mac->mac_flags)); CSR_READ_2(sc, BWI_PHYINFO); /* dummy read */ CSR_CLRBITS_4(sc, BWI_MAC_STATUS, BWI_MAC_STATUS_RFLOCK); if (mac->mac_rev < 3) bwi_mac_start(mac); else if (ic->ic_opmode != IEEE80211_M_HOSTAP) bwi_mac_config_ps(mac); mac->mac_flags &= ~BWI_MAC_F_LOCKED; } void bwi_mac_set_promisc(struct bwi_mac *mac, int promisc) { struct bwi_softc *sc = mac->mac_sc; if (mac->mac_rev < 5) /* Promisc is always on */ return; if (promisc) CSR_SETBITS_4(sc, BWI_MAC_STATUS, BWI_MAC_STATUS_PROMISC); else CSR_CLRBITS_4(sc, BWI_MAC_STATUS, BWI_MAC_STATUS_PROMISC); }