From 5b7c4cabbb65f5c469464da6c5f614cbd7f730f2 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Tue, 21 Feb 2023 18:24:12 -0800 Subject: Merge tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next Pull networking updates from Jakub Kicinski: "Core: - Add dedicated kmem_cache for typical/small skb->head, avoid having to access struct page at kfree time, and improve memory use. - Introduce sysctl to set default RPS configuration for new netdevs. - Define Netlink protocol specification format which can be used to describe messages used by each family and auto-generate parsers. Add tools for generating kernel data structures and uAPI headers. - Expose all net/core sysctls inside netns. - Remove 4s sleep in netpoll if carrier is instantly detected on boot. - Add configurable limit of MDB entries per port, and port-vlan. - Continue populating drop reasons throughout the stack. - Retire a handful of legacy Qdiscs and classifiers. Protocols: - Support IPv4 big TCP (TSO frames larger than 64kB). - Add IP_LOCAL_PORT_RANGE socket option, to control local port range on socket by socket basis. - Track and report in procfs number of MPTCP sockets used. - Support mixing IPv4 and IPv6 flows in the in-kernel MPTCP path manager. - IPv6: don't check net.ipv6.route.max_size and rely on garbage collection to free memory (similarly to IPv4). - Support Penultimate Segment Pop (PSP) flavor in SRv6 (RFC8986). - ICMP: add per-rate limit counters. - Add support for user scanning requests in ieee802154. - Remove static WEP support. - Support minimal Wi-Fi 7 Extremely High Throughput (EHT) rate reporting. - WiFi 7 EHT channel puncturing support (client & AP). BPF: - Add a rbtree data structure following the "next-gen data structure" precedent set by recently added linked list, that is, by using kfunc + kptr instead of adding a new BPF map type. - Expose XDP hints via kfuncs with initial support for RX hash and timestamp metadata. - Add BPF_F_NO_TUNNEL_KEY extension to bpf_skb_set_tunnel_key to better support decap on GRE tunnel devices not operating in collect metadata. - Improve x86 JIT's codegen for PROBE_MEM runtime error checks. - Remove the need for trace_printk_lock for bpf_trace_printk and bpf_trace_vprintk helpers. - Extend libbpf's bpf_tracing.h support for tracing arguments of kprobes/uprobes and syscall as a special case. - Significantly reduce the search time for module symbols by livepatch and BPF. - Enable cpumasks to be used as kptrs, which is useful for tracing programs tracking which tasks end up running on which CPUs in different time intervals. - Add support for BPF trampoline on s390x and riscv64. - Add capability to export the XDP features supported by the NIC. - Add __bpf_kfunc tag for marking kernel functions as kfuncs. - Add cgroup.memory=nobpf kernel parameter option to disable BPF memory accounting for container environments. Netfilter: - Remove the CLUSTERIP target. It has been marked as obsolete for years, and we still have WARN splats wrt races of the out-of-band /proc interface installed by this target. - Add 'destroy' commands to nf_tables. They are identical to the existing 'delete' commands, but do not return an error if the referenced object (set, chain, rule...) did not exist. Driver API: - Improve cpumask_local_spread() locality to help NICs set the right IRQ affinity on AMD platforms. - Separate C22 and C45 MDIO bus transactions more clearly. - Introduce new DCB table to control DSCP rewrite on egress. - Support configuration of Physical Layer Collision Avoidance (PLCA) Reconciliation Sublayer (RS) (802.3cg-2019). Modern version of shared medium Ethernet. - Support for MAC Merge layer (IEEE 802.3-2018 clause 99). Allowing preemption of low priority frames by high priority frames. - Add support for controlling MACSec offload using netlink SET. - Rework devlink instance refcounts to allow registration and de-registration under the instance lock. Split the code into multiple files, drop some of the unnecessarily granular locks and factor out common parts of netlink operation handling. - Add TX frame aggregation parameters (for USB drivers). - Add a new attr TCA_EXT_WARN_MSG to report TC (offload) warning messages with notifications for debug. - Allow offloading of UDP NEW connections via act_ct. - Add support for per action HW stats in TC. - Support hardware miss to TC action (continue processing in SW from a specific point in the action chain). - Warn if old Wireless Extension user space interface is used with modern cfg80211/mac80211 drivers. Do not support Wireless Extensions for Wi-Fi 7 devices at all. Everyone should switch to using nl80211 interface instead. - Improve the CAN bit timing configuration. Use extack to return error messages directly to user space, update the SJW handling, including the definition of a new default value that will benefit CAN-FD controllers, by increasing their oscillator tolerance. New hardware / drivers: - Ethernet: - nVidia BlueField-3 support (control traffic driver) - Ethernet support for imx93 SoCs - Motorcomm yt8531 gigabit Ethernet PHY - onsemi NCN26000 10BASE-T1S PHY (with support for PLCA) - Microchip LAN8841 PHY (incl. cable diagnostics and PTP) - Amlogic gxl MDIO mux - WiFi: - RealTek RTL8188EU (rtl8xxxu) - Qualcomm Wi-Fi 7 devices (ath12k) - CAN: - Renesas R-Car V4H Drivers: - Bluetooth: - Set Per Platform Antenna Gain (PPAG) for Intel controllers. - Ethernet NICs: - Intel (1G, igc): - support TSN / Qbv / packet scheduling features of i226 model - Intel (100G, ice): - use GNSS subsystem instead of TTY - multi-buffer XDP support - extend support for GPIO pins to E823 devices - nVidia/Mellanox: - update the shared buffer configuration on PFC commands - implement PTP adjphase function for HW offset control - TC support for Geneve and GRE with VF tunnel offload - more efficient crypto key management method - multi-port eswitch support - Netronome/Corigine: - add DCB IEEE support - support IPsec offloading for NFP3800 - Freescale/NXP (enetc): - support XDP_REDIRECT for XDP non-linear buffers - improve reconfig, avoid link flap and waiting for idle - support MAC Merge layer - Other NICs: - sfc/ef100: add basic devlink support for ef100 - ionic: rx_push mode operation (writing descriptors via MMIO) - bnxt: use the auxiliary bus abstraction for RDMA - r8169: disable ASPM and reset bus in case of tx timeout - cpsw: support QSGMII mode for J721e CPSW9G - cpts: support pulse-per-second output - ngbe: add an mdio bus driver - usbnet: optimize usbnet_bh() by avoiding unnecessary queuing - r8152: handle devices with FW with NCM support - amd-xgbe: support 10Mbps, 2.5GbE speeds and rx-adaptation - virtio-net: support multi buffer XDP - virtio/vsock: replace virtio_vsock_pkt with sk_buff - tsnep: XDP support - Ethernet high-speed switches: - nVidia/Mellanox (mlxsw): - add support for latency TLV (in FW control messages) - Microchip (sparx5): - separate explicit and implicit traffic forwarding rules, make the implicit rules always active - add support for egress DSCP rewrite - IS0 VCAP support (Ingress Classification) - IS2 VCAP filters (protos, L3 addrs, L4 ports, flags, ToS etc.) - ES2 VCAP support (Egress Access Control) - support for Per-Stream Filtering and Policing (802.1Q, 8.6.5.1) - Ethernet embedded switches: - Marvell (mv88e6xxx): - add MAB (port auth) offload support - enable PTP receive for mv88e6390 - NXP (ocelot): - support MAC Merge layer - support for the the vsc7512 internal copper phys - Microchip: - lan9303: convert to PHYLINK - lan966x: support TC flower filter statistics - lan937x: PTP support for KSZ9563/KSZ8563 and LAN937x - lan937x: support Credit Based Shaper configuration - ksz9477: support Energy Efficient Ethernet - other: - qca8k: convert to regmap read/write API, use bulk operations - rswitch: Improve TX timestamp accuracy - Intel WiFi (iwlwifi): - EHT (Wi-Fi 7) rate reporting - STEP equalizer support: transfer some STEP (connection to radio on platforms with integrated wifi) related parameters from the BIOS to the firmware. - Qualcomm 802.11ax WiFi (ath11k): - IPQ5018 support - Fine Timing Measurement (FTM) responder role support - channel 177 support - MediaTek WiFi (mt76): - per-PHY LED support - mt7996: EHT (Wi-Fi 7) support - Wireless Ethernet Dispatch (WED) reset support - switch to using page pool allocator - RealTek WiFi (rtw89): - support new version of Bluetooth co-existance - Mobile: - rmnet: support TX aggregation" * tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1872 commits) page_pool: add a comment explaining the fragment counter usage net: ethtool: fix __ethtool_dev_mm_supported() implementation ethtool: pse-pd: Fix double word in comments xsk: add linux/vmalloc.h to xsk.c sefltests: netdevsim: wait for devlink instance after netns removal selftest: fib_tests: Always cleanup before exit net/mlx5e: Align IPsec ASO result memory to be as required by hardware net/mlx5e: TC, Set CT miss to the specific ct action instance net/mlx5e: Rename CHAIN_TO_REG to MAPPED_OBJ_TO_REG net/mlx5: Refactor tc miss handling to a single function net/mlx5: Kconfig: Make tc offload depend on tc skb extension net/sched: flower: Support hardware miss to tc action net/sched: flower: Move filter handle initialization earlier net/sched: cls_api: Support hardware miss to tc action net/sched: Rename user cookie and act cookie sfc: fix builds without CONFIG_RTC_LIB sfc: clean up some inconsistent indentings net/mlx4_en: Introduce flexible array to silence overflow warning net: lan966x: Fix possible deadlock inside PTP net/ulp: Remove redundant ->clone() test in inet_clone_ulp(). ... --- drivers/net/wireless/ath/ath9k/gpio.c | 519 ++++++++++++++++++++++++++++++++++ 1 file changed, 519 insertions(+) create mode 100644 drivers/net/wireless/ath/ath9k/gpio.c (limited to 'drivers/net/wireless/ath/ath9k/gpio.c') diff --git a/drivers/net/wireless/ath/ath9k/gpio.c b/drivers/net/wireless/ath/ath9k/gpio.c new file mode 100644 index 000000000..b457e52dd --- /dev/null +++ b/drivers/net/wireless/ath/ath9k/gpio.c @@ -0,0 +1,519 @@ +/* + * Copyright (c) 2008-2011 Atheros Communications Inc. + * + * Permission to use, copy, modify, and/or distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +#include "ath9k.h" + +/********************************/ +/* LED functions */ +/********************************/ + +#ifdef CONFIG_MAC80211_LEDS + +static void ath_fill_led_pin(struct ath_softc *sc) +{ + struct ath_hw *ah = sc->sc_ah; + + /* Set default led pin if invalid */ + if (ah->led_pin < 0) { + if (AR_SREV_9287(ah)) + ah->led_pin = ATH_LED_PIN_9287; + else if (AR_SREV_9485(ah)) + ah->led_pin = ATH_LED_PIN_9485; + else if (AR_SREV_9300(ah)) + ah->led_pin = ATH_LED_PIN_9300; + else if (AR_SREV_9462(ah) || AR_SREV_9565(ah)) + ah->led_pin = ATH_LED_PIN_9462; + else + ah->led_pin = ATH_LED_PIN_DEF; + } + + /* Configure gpio for output */ + ath9k_hw_gpio_request_out(ah, ah->led_pin, "ath9k-led", + AR_GPIO_OUTPUT_MUX_AS_OUTPUT); + + /* LED off, active low */ + ath9k_hw_set_gpio(ah, ah->led_pin, ah->config.led_active_high ? 0 : 1); +} + +static void ath_led_brightness(struct led_classdev *led_cdev, + enum led_brightness brightness) +{ + struct ath_softc *sc = container_of(led_cdev, struct ath_softc, led_cdev); + u32 val = (brightness == LED_OFF); + + if (sc->sc_ah->config.led_active_high) + val = !val; + + ath9k_hw_set_gpio(sc->sc_ah, sc->sc_ah->led_pin, val); +} + +void ath_deinit_leds(struct ath_softc *sc) +{ + if (!sc->led_registered) + return; + + ath_led_brightness(&sc->led_cdev, LED_OFF); + led_classdev_unregister(&sc->led_cdev); + + ath9k_hw_gpio_free(sc->sc_ah, sc->sc_ah->led_pin); +} + +void ath_init_leds(struct ath_softc *sc) +{ + int ret; + + if (AR_SREV_9100(sc->sc_ah)) + return; + + ath_fill_led_pin(sc); + + if (!ath9k_led_blink) + sc->led_cdev.default_trigger = + ieee80211_get_radio_led_name(sc->hw); + + snprintf(sc->led_name, sizeof(sc->led_name), + "ath9k-%s", wiphy_name(sc->hw->wiphy)); + sc->led_cdev.name = sc->led_name; + sc->led_cdev.brightness_set = ath_led_brightness; + + ret = led_classdev_register(wiphy_dev(sc->hw->wiphy), &sc->led_cdev); + if (ret < 0) + return; + + sc->led_registered = true; +} +#endif + +/*******************/ +/* Rfkill */ +/*******************/ + +static bool ath_is_rfkill_set(struct ath_softc *sc) +{ + struct ath_hw *ah = sc->sc_ah; + bool is_blocked; + + ath9k_ps_wakeup(sc); + is_blocked = ath9k_hw_gpio_get(ah, ah->rfkill_gpio) == + ah->rfkill_polarity; + ath9k_ps_restore(sc); + + return is_blocked; +} + +void ath9k_rfkill_poll_state(struct ieee80211_hw *hw) +{ + struct ath_softc *sc = hw->priv; + bool blocked = !!ath_is_rfkill_set(sc); + + wiphy_rfkill_set_hw_state(hw->wiphy, blocked); +} + +void ath_start_rfkill_poll(struct ath_softc *sc) +{ + struct ath_hw *ah = sc->sc_ah; + + if (ah->caps.hw_caps & ATH9K_HW_CAP_RFSILENT) + wiphy_rfkill_start_polling(sc->hw->wiphy); +} + +#ifdef CONFIG_ATH9K_BTCOEX_SUPPORT + +/******************/ +/* BTCOEX */ +/******************/ + +/* + * Detects if there is any priority bt traffic + */ +static void ath_detect_bt_priority(struct ath_softc *sc) +{ + struct ath_btcoex *btcoex = &sc->btcoex; + struct ath_hw *ah = sc->sc_ah; + + if (ath9k_hw_gpio_get(sc->sc_ah, ah->btcoex_hw.btpriority_gpio)) + btcoex->bt_priority_cnt++; + + if (time_after(jiffies, btcoex->bt_priority_time + + msecs_to_jiffies(ATH_BT_PRIORITY_TIME_THRESHOLD))) { + clear_bit(BT_OP_PRIORITY_DETECTED, &btcoex->op_flags); + clear_bit(BT_OP_SCAN, &btcoex->op_flags); + /* Detect if colocated bt started scanning */ + if (btcoex->bt_priority_cnt >= ATH_BT_CNT_SCAN_THRESHOLD) { + ath_dbg(ath9k_hw_common(sc->sc_ah), BTCOEX, + "BT scan detected\n"); + set_bit(BT_OP_PRIORITY_DETECTED, &btcoex->op_flags); + set_bit(BT_OP_SCAN, &btcoex->op_flags); + } else if (btcoex->bt_priority_cnt >= ATH_BT_CNT_THRESHOLD) { + ath_dbg(ath9k_hw_common(sc->sc_ah), BTCOEX, + "BT priority traffic detected\n"); + set_bit(BT_OP_PRIORITY_DETECTED, &btcoex->op_flags); + } + + btcoex->bt_priority_cnt = 0; + btcoex->bt_priority_time = jiffies; + } +} + +static void ath_mci_ftp_adjust(struct ath_softc *sc) +{ + struct ath_btcoex *btcoex = &sc->btcoex; + struct ath_mci_profile *mci = &btcoex->mci; + struct ath_hw *ah = sc->sc_ah; + + if (btcoex->bt_wait_time > ATH_BTCOEX_RX_WAIT_TIME) { + if (ar9003_mci_state(ah, MCI_STATE_NEED_FTP_STOMP) && + (mci->num_pan || mci->num_other_acl)) + ah->btcoex_hw.mci.stomp_ftp = + (sc->rx.num_pkts < ATH_BTCOEX_STOMP_FTP_THRESH); + else + ah->btcoex_hw.mci.stomp_ftp = false; + btcoex->bt_wait_time = 0; + sc->rx.num_pkts = 0; + } +} + +/* + * This is the master bt coex timer which runs for every + * 45ms, bt traffic will be given priority during 55% of this + * period while wlan gets remaining 45% + */ +static void ath_btcoex_period_timer(struct timer_list *t) +{ + struct ath_softc *sc = from_timer(sc, t, btcoex.period_timer); + struct ath_hw *ah = sc->sc_ah; + struct ath_btcoex *btcoex = &sc->btcoex; + enum ath_stomp_type stomp_type; + u32 timer_period; + unsigned long flags; + + spin_lock_irqsave(&sc->sc_pm_lock, flags); + if (sc->sc_ah->power_mode == ATH9K_PM_NETWORK_SLEEP) { + btcoex->bt_wait_time += btcoex->btcoex_period; + spin_unlock_irqrestore(&sc->sc_pm_lock, flags); + goto skip_hw_wakeup; + } + spin_unlock_irqrestore(&sc->sc_pm_lock, flags); + + ath9k_ps_wakeup(sc); + spin_lock_bh(&btcoex->btcoex_lock); + + if (ah->caps.hw_caps & ATH9K_HW_CAP_MCI) { + ath9k_mci_update_rssi(sc); + ath_mci_ftp_adjust(sc); + } + + if (!(ah->caps.hw_caps & ATH9K_HW_CAP_MCI)) + ath_detect_bt_priority(sc); + + stomp_type = btcoex->bt_stomp_type; + timer_period = btcoex->btcoex_no_stomp; + + if (!(ah->caps.hw_caps & ATH9K_HW_CAP_MCI)) { + if (test_bit(BT_OP_SCAN, &btcoex->op_flags)) { + stomp_type = ATH_BTCOEX_STOMP_ALL; + timer_period = btcoex->btscan_no_stomp; + } + } else if (btcoex->stomp_audio >= 5) { + stomp_type = ATH_BTCOEX_STOMP_AUDIO; + btcoex->stomp_audio = 0; + } + + ath9k_hw_btcoex_bt_stomp(ah, stomp_type); + ath9k_hw_btcoex_enable(ah); + + spin_unlock_bh(&btcoex->btcoex_lock); + + if (btcoex->btcoex_period != btcoex->btcoex_no_stomp) + mod_timer(&btcoex->no_stomp_timer, + jiffies + msecs_to_jiffies(timer_period)); + + ath9k_ps_restore(sc); + +skip_hw_wakeup: + mod_timer(&btcoex->period_timer, + jiffies + msecs_to_jiffies(btcoex->btcoex_period)); +} + +/* + * Generic tsf based hw timer which configures weight + * registers to time slice between wlan and bt traffic + */ +static void ath_btcoex_no_stomp_timer(struct timer_list *t) +{ + struct ath_softc *sc = from_timer(sc, t, btcoex.no_stomp_timer); + struct ath_hw *ah = sc->sc_ah; + struct ath_btcoex *btcoex = &sc->btcoex; + + ath9k_ps_wakeup(sc); + spin_lock_bh(&btcoex->btcoex_lock); + + if (btcoex->bt_stomp_type == ATH_BTCOEX_STOMP_LOW || + (!(ah->caps.hw_caps & ATH9K_HW_CAP_MCI) && + test_bit(BT_OP_SCAN, &btcoex->op_flags))) + ath9k_hw_btcoex_bt_stomp(ah, ATH_BTCOEX_STOMP_NONE); + else if (btcoex->bt_stomp_type == ATH_BTCOEX_STOMP_ALL) + ath9k_hw_btcoex_bt_stomp(ah, ATH_BTCOEX_STOMP_LOW); + + ath9k_hw_btcoex_enable(ah); + spin_unlock_bh(&btcoex->btcoex_lock); + ath9k_ps_restore(sc); +} + +static void ath_init_btcoex_timer(struct ath_softc *sc) +{ + struct ath_btcoex *btcoex = &sc->btcoex; + + btcoex->btcoex_period = ATH_BTCOEX_DEF_BT_PERIOD; + btcoex->btcoex_no_stomp = (100 - ATH_BTCOEX_DEF_DUTY_CYCLE) * + btcoex->btcoex_period / 100; + btcoex->btscan_no_stomp = (100 - ATH_BTCOEX_BTSCAN_DUTY_CYCLE) * + btcoex->btcoex_period / 100; + btcoex->bt_stomp_type = ATH_BTCOEX_STOMP_LOW; + + timer_setup(&btcoex->period_timer, ath_btcoex_period_timer, 0); + timer_setup(&btcoex->no_stomp_timer, ath_btcoex_no_stomp_timer, 0); + + spin_lock_init(&btcoex->btcoex_lock); +} + +/* + * (Re)start btcoex timers + */ +void ath9k_btcoex_timer_resume(struct ath_softc *sc) +{ + struct ath_btcoex *btcoex = &sc->btcoex; + struct ath_hw *ah = sc->sc_ah; + + if (ath9k_hw_get_btcoex_scheme(ah) != ATH_BTCOEX_CFG_3WIRE && + ath9k_hw_get_btcoex_scheme(ah) != ATH_BTCOEX_CFG_MCI) + return; + + ath_dbg(ath9k_hw_common(ah), BTCOEX, "Starting btcoex timers\n"); + + /* make sure duty cycle timer is also stopped when resuming */ + del_timer_sync(&btcoex->no_stomp_timer); + + btcoex->bt_priority_cnt = 0; + btcoex->bt_priority_time = jiffies; + clear_bit(BT_OP_PRIORITY_DETECTED, &btcoex->op_flags); + clear_bit(BT_OP_SCAN, &btcoex->op_flags); + + mod_timer(&btcoex->period_timer, jiffies); +} + +/* + * Pause btcoex timer and bt duty cycle timer + */ +void ath9k_btcoex_timer_pause(struct ath_softc *sc) +{ + struct ath_btcoex *btcoex = &sc->btcoex; + struct ath_hw *ah = sc->sc_ah; + + if (ath9k_hw_get_btcoex_scheme(ah) != ATH_BTCOEX_CFG_3WIRE && + ath9k_hw_get_btcoex_scheme(ah) != ATH_BTCOEX_CFG_MCI) + return; + + ath_dbg(ath9k_hw_common(ah), BTCOEX, "Stopping btcoex timers\n"); + + del_timer_sync(&btcoex->period_timer); + del_timer_sync(&btcoex->no_stomp_timer); +} + +void ath9k_btcoex_stop_gen_timer(struct ath_softc *sc) +{ + struct ath_btcoex *btcoex = &sc->btcoex; + + del_timer_sync(&btcoex->no_stomp_timer); +} + +u16 ath9k_btcoex_aggr_limit(struct ath_softc *sc, u32 max_4ms_framelen) +{ + struct ath_btcoex *btcoex = &sc->btcoex; + struct ath_mci_profile *mci = &sc->btcoex.mci; + u16 aggr_limit = 0; + + if ((sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_MCI) && mci->aggr_limit) + aggr_limit = (max_4ms_framelen * mci->aggr_limit) >> 4; + else if (test_bit(BT_OP_PRIORITY_DETECTED, &btcoex->op_flags)) + aggr_limit = min((max_4ms_framelen * 3) / 8, + (u32)ATH_AMPDU_LIMIT_MAX); + + return aggr_limit; +} + +void ath9k_btcoex_handle_interrupt(struct ath_softc *sc, u32 status) +{ + if (status & ATH9K_INT_MCI) + ath_mci_intr(sc); +} + +void ath9k_start_btcoex(struct ath_softc *sc) +{ + struct ath_hw *ah = sc->sc_ah; + + if (ah->btcoex_hw.enabled || + ath9k_hw_get_btcoex_scheme(ah) == ATH_BTCOEX_CFG_NONE) + return; + + if (!(ah->caps.hw_caps & ATH9K_HW_CAP_MCI)) + ath9k_hw_btcoex_set_weight(ah, AR_BT_COEX_WGHT, + AR_STOMP_LOW_WLAN_WGHT, 0); + else + ath9k_hw_btcoex_set_weight(ah, 0, 0, + ATH_BTCOEX_STOMP_NONE); + ath9k_hw_btcoex_enable(ah); + ath9k_btcoex_timer_resume(sc); +} + +void ath9k_stop_btcoex(struct ath_softc *sc) +{ + struct ath_hw *ah = sc->sc_ah; + + if (!ah->btcoex_hw.enabled || + ath9k_hw_get_btcoex_scheme(ah) == ATH_BTCOEX_CFG_NONE) + return; + + ath9k_btcoex_timer_pause(sc); + ath9k_hw_btcoex_disable(ah); + + if (ah->caps.hw_caps & ATH9K_HW_CAP_MCI) + ath_mci_flush_profile(&sc->btcoex.mci); +} + +void ath9k_deinit_btcoex(struct ath_softc *sc) +{ + struct ath_hw *ah = sc->sc_ah; + + if (ath9k_hw_mci_is_enabled(ah)) + ath_mci_cleanup(sc); + else { + enum ath_btcoex_scheme scheme = ath9k_hw_get_btcoex_scheme(ah); + + if (scheme == ATH_BTCOEX_CFG_2WIRE || + scheme == ATH_BTCOEX_CFG_3WIRE) + ath9k_hw_btcoex_deinit(sc->sc_ah); + } +} + +int ath9k_init_btcoex(struct ath_softc *sc) +{ + struct ath_txq *txq; + struct ath_hw *ah = sc->sc_ah; + int r; + + ath9k_hw_btcoex_init_scheme(ah); + + switch (ath9k_hw_get_btcoex_scheme(sc->sc_ah)) { + case ATH_BTCOEX_CFG_NONE: + break; + case ATH_BTCOEX_CFG_2WIRE: + ath9k_hw_btcoex_init_2wire(sc->sc_ah); + break; + case ATH_BTCOEX_CFG_3WIRE: + ath9k_hw_btcoex_init_3wire(sc->sc_ah); + ath_init_btcoex_timer(sc); + txq = sc->tx.txq_map[IEEE80211_AC_BE]; + ath9k_hw_init_btcoex_hw(sc->sc_ah, txq->axq_qnum); + break; + case ATH_BTCOEX_CFG_MCI: + ath_init_btcoex_timer(sc); + + sc->btcoex.duty_cycle = ATH_BTCOEX_DEF_DUTY_CYCLE; + INIT_LIST_HEAD(&sc->btcoex.mci.info); + ath9k_hw_btcoex_init_mci(ah); + + r = ath_mci_setup(sc); + if (r) + return r; + + break; + default: + WARN_ON(1); + break; + } + + return 0; +} + +static int ath9k_dump_mci_btcoex(struct ath_softc *sc, u8 *buf, u32 size) +{ + struct ath_btcoex *btcoex = &sc->btcoex; + struct ath_mci_profile *mci = &btcoex->mci; + struct ath_hw *ah = sc->sc_ah; + struct ath_btcoex_hw *btcoex_hw = &ah->btcoex_hw; + u32 len = 0; + int i; + + ATH_DUMP_BTCOEX("Total BT profiles", NUM_PROF(mci)); + ATH_DUMP_BTCOEX("MGMT", mci->num_mgmt); + ATH_DUMP_BTCOEX("SCO", mci->num_sco); + ATH_DUMP_BTCOEX("A2DP", mci->num_a2dp); + ATH_DUMP_BTCOEX("HID", mci->num_hid); + ATH_DUMP_BTCOEX("PAN", mci->num_pan); + ATH_DUMP_BTCOEX("ACL", mci->num_other_acl); + ATH_DUMP_BTCOEX("BDR", mci->num_bdr); + ATH_DUMP_BTCOEX("Aggr. Limit", mci->aggr_limit); + ATH_DUMP_BTCOEX("Stomp Type", btcoex->bt_stomp_type); + ATH_DUMP_BTCOEX("BTCoex Period (msec)", btcoex->btcoex_period); + ATH_DUMP_BTCOEX("Duty Cycle", btcoex->duty_cycle); + ATH_DUMP_BTCOEX("BT Wait time", btcoex->bt_wait_time); + ATH_DUMP_BTCOEX("Concurrent Tx", btcoex_hw->mci.concur_tx); + ATH_DUMP_BTCOEX("Concurrent RSSI cnt", btcoex->rssi_count); + + len += scnprintf(buf + len, size - len, "BT Weights: "); + for (i = 0; i < AR9300_NUM_BT_WEIGHTS; i++) + len += scnprintf(buf + len, size - len, "%08x ", + btcoex_hw->bt_weight[i]); + len += scnprintf(buf + len, size - len, "\n"); + len += scnprintf(buf + len, size - len, "WLAN Weights: "); + for (i = 0; i < AR9300_NUM_BT_WEIGHTS; i++) + len += scnprintf(buf + len, size - len, "%08x ", + btcoex_hw->wlan_weight[i]); + len += scnprintf(buf + len, size - len, "\n"); + len += scnprintf(buf + len, size - len, "Tx Priorities: "); + for (i = 0; i < ATH_BTCOEX_STOMP_MAX; i++) + len += scnprintf(buf + len, size - len, "%08x ", + btcoex_hw->tx_prio[i]); + + len += scnprintf(buf + len, size - len, "\n"); + + return len; +} + +static int ath9k_dump_legacy_btcoex(struct ath_softc *sc, u8 *buf, u32 size) +{ + + struct ath_btcoex *btcoex = &sc->btcoex; + u32 len = 0; + + ATH_DUMP_BTCOEX("Stomp Type", btcoex->bt_stomp_type); + ATH_DUMP_BTCOEX("BTCoex Period (msec)", btcoex->btcoex_period); + ATH_DUMP_BTCOEX("Duty Cycle", btcoex->duty_cycle); + ATH_DUMP_BTCOEX("BT Wait time", btcoex->bt_wait_time); + + return len; +} + +int ath9k_dump_btcoex(struct ath_softc *sc, u8 *buf, u32 size) +{ + if (ath9k_hw_mci_is_enabled(sc->sc_ah)) + return ath9k_dump_mci_btcoex(sc, buf, size); + else + return ath9k_dump_legacy_btcoex(sc, buf, size); +} + +#endif /* CONFIG_ATH9K_BTCOEX_SUPPORT */ -- cgit v1.2.3