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/broadcom/b43/phy_common.c | 593 +++++++++++++++++++++++++ 1 file changed, 593 insertions(+) create mode 100644 drivers/net/wireless/broadcom/b43/phy_common.c (limited to 'drivers/net/wireless/broadcom/b43/phy_common.c') diff --git a/drivers/net/wireless/broadcom/b43/phy_common.c b/drivers/net/wireless/broadcom/b43/phy_common.c new file mode 100644 index 000000000..285490f6f --- /dev/null +++ b/drivers/net/wireless/broadcom/b43/phy_common.c @@ -0,0 +1,593 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + + Broadcom B43 wireless driver + Common PHY routines + + Copyright (c) 2005 Martin Langer , + Copyright (c) 2005-2007 Stefano Brivio + Copyright (c) 2005-2008 Michael Buesch + Copyright (c) 2005, 2006 Danny van Dyk + Copyright (c) 2005, 2006 Andreas Jaggi + + +*/ + +#include "phy_common.h" +#include "phy_g.h" +#include "phy_a.h" +#include "phy_n.h" +#include "phy_lp.h" +#include "phy_ht.h" +#include "phy_lcn.h" +#include "phy_ac.h" +#include "b43.h" +#include "main.h" + + +int b43_phy_allocate(struct b43_wldev *dev) +{ + struct b43_phy *phy = &(dev->phy); + int err; + + phy->ops = NULL; + + switch (phy->type) { + case B43_PHYTYPE_G: +#ifdef CONFIG_B43_PHY_G + phy->ops = &b43_phyops_g; +#endif + break; + case B43_PHYTYPE_N: +#ifdef CONFIG_B43_PHY_N + phy->ops = &b43_phyops_n; +#endif + break; + case B43_PHYTYPE_LP: +#ifdef CONFIG_B43_PHY_LP + phy->ops = &b43_phyops_lp; +#endif + break; + case B43_PHYTYPE_HT: +#ifdef CONFIG_B43_PHY_HT + phy->ops = &b43_phyops_ht; +#endif + break; + case B43_PHYTYPE_LCN: +#ifdef CONFIG_B43_PHY_LCN + phy->ops = &b43_phyops_lcn; +#endif + break; + case B43_PHYTYPE_AC: +#ifdef CONFIG_B43_PHY_AC + phy->ops = &b43_phyops_ac; +#endif + break; + } + if (B43_WARN_ON(!phy->ops)) + return -ENODEV; + + err = phy->ops->allocate(dev); + if (err) + phy->ops = NULL; + + return err; +} + +void b43_phy_free(struct b43_wldev *dev) +{ + dev->phy.ops->free(dev); + dev->phy.ops = NULL; +} + +int b43_phy_init(struct b43_wldev *dev) +{ + struct b43_phy *phy = &dev->phy; + const struct b43_phy_operations *ops = phy->ops; + int err; + + /* During PHY init we need to use some channel. On the first init this + * function is called *before* b43_op_config, so our pointer is NULL. + */ + if (!phy->chandef) { + phy->chandef = &dev->wl->hw->conf.chandef; + phy->channel = phy->chandef->chan->hw_value; + } + + phy->ops->switch_analog(dev, true); + b43_software_rfkill(dev, false); + + err = ops->init(dev); + if (err) { + b43err(dev->wl, "PHY init failed\n"); + goto err_block_rf; + } + phy->do_full_init = false; + + err = b43_switch_channel(dev, phy->channel); + if (err) { + b43err(dev->wl, "PHY init: Channel switch to default failed\n"); + goto err_phy_exit; + } + + return 0; + +err_phy_exit: + phy->do_full_init = true; + if (ops->exit) + ops->exit(dev); +err_block_rf: + b43_software_rfkill(dev, true); + + return err; +} + +void b43_phy_exit(struct b43_wldev *dev) +{ + const struct b43_phy_operations *ops = dev->phy.ops; + + b43_software_rfkill(dev, true); + dev->phy.do_full_init = true; + if (ops->exit) + ops->exit(dev); +} + +bool b43_has_hardware_pctl(struct b43_wldev *dev) +{ + if (!dev->phy.hardware_power_control) + return false; + if (!dev->phy.ops->supports_hwpctl) + return false; + return dev->phy.ops->supports_hwpctl(dev); +} + +void b43_radio_lock(struct b43_wldev *dev) +{ + u32 macctl; + +#if B43_DEBUG + B43_WARN_ON(dev->phy.radio_locked); + dev->phy.radio_locked = true; +#endif + + macctl = b43_read32(dev, B43_MMIO_MACCTL); + macctl |= B43_MACCTL_RADIOLOCK; + b43_write32(dev, B43_MMIO_MACCTL, macctl); + /* Commit the write and wait for the firmware + * to finish any radio register access. */ + b43_read32(dev, B43_MMIO_MACCTL); + udelay(10); +} + +void b43_radio_unlock(struct b43_wldev *dev) +{ + u32 macctl; + +#if B43_DEBUG + B43_WARN_ON(!dev->phy.radio_locked); + dev->phy.radio_locked = false; +#endif + + /* Commit any write */ + b43_read16(dev, B43_MMIO_PHY_VER); + /* unlock */ + macctl = b43_read32(dev, B43_MMIO_MACCTL); + macctl &= ~B43_MACCTL_RADIOLOCK; + b43_write32(dev, B43_MMIO_MACCTL, macctl); +} + +void b43_phy_lock(struct b43_wldev *dev) +{ +#if B43_DEBUG + B43_WARN_ON(dev->phy.phy_locked); + dev->phy.phy_locked = true; +#endif + B43_WARN_ON(dev->dev->core_rev < 3); + + if (!b43_is_mode(dev->wl, NL80211_IFTYPE_AP)) + b43_power_saving_ctl_bits(dev, B43_PS_AWAKE); +} + +void b43_phy_unlock(struct b43_wldev *dev) +{ +#if B43_DEBUG + B43_WARN_ON(!dev->phy.phy_locked); + dev->phy.phy_locked = false; +#endif + B43_WARN_ON(dev->dev->core_rev < 3); + + if (!b43_is_mode(dev->wl, NL80211_IFTYPE_AP)) + b43_power_saving_ctl_bits(dev, 0); +} + +static inline void assert_mac_suspended(struct b43_wldev *dev) +{ + if (!B43_DEBUG) + return; + if ((b43_status(dev) >= B43_STAT_INITIALIZED) && + (dev->mac_suspended <= 0)) { + b43dbg(dev->wl, "PHY/RADIO register access with " + "enabled MAC.\n"); + dump_stack(); + } +} + +u16 b43_radio_read(struct b43_wldev *dev, u16 reg) +{ + assert_mac_suspended(dev); + dev->phy.writes_counter = 0; + return dev->phy.ops->radio_read(dev, reg); +} + +void b43_radio_write(struct b43_wldev *dev, u16 reg, u16 value) +{ + assert_mac_suspended(dev); + if (b43_bus_host_is_pci(dev->dev) && + ++dev->phy.writes_counter > B43_MAX_WRITES_IN_ROW) { + b43_read32(dev, B43_MMIO_MACCTL); + dev->phy.writes_counter = 1; + } + dev->phy.ops->radio_write(dev, reg, value); +} + +void b43_radio_mask(struct b43_wldev *dev, u16 offset, u16 mask) +{ + b43_radio_write16(dev, offset, + b43_radio_read16(dev, offset) & mask); +} + +void b43_radio_set(struct b43_wldev *dev, u16 offset, u16 set) +{ + b43_radio_write16(dev, offset, + b43_radio_read16(dev, offset) | set); +} + +void b43_radio_maskset(struct b43_wldev *dev, u16 offset, u16 mask, u16 set) +{ + b43_radio_write16(dev, offset, + (b43_radio_read16(dev, offset) & mask) | set); +} + +bool b43_radio_wait_value(struct b43_wldev *dev, u16 offset, u16 mask, + u16 value, int delay, int timeout) +{ + u16 val; + int i; + + for (i = 0; i < timeout; i += delay) { + val = b43_radio_read(dev, offset); + if ((val & mask) == value) + return true; + udelay(delay); + } + return false; +} + +u16 b43_phy_read(struct b43_wldev *dev, u16 reg) +{ + assert_mac_suspended(dev); + dev->phy.writes_counter = 0; + + if (dev->phy.ops->phy_read) + return dev->phy.ops->phy_read(dev, reg); + + b43_write16f(dev, B43_MMIO_PHY_CONTROL, reg); + return b43_read16(dev, B43_MMIO_PHY_DATA); +} + +void b43_phy_write(struct b43_wldev *dev, u16 reg, u16 value) +{ + assert_mac_suspended(dev); + if (b43_bus_host_is_pci(dev->dev) && + ++dev->phy.writes_counter > B43_MAX_WRITES_IN_ROW) { + b43_read16(dev, B43_MMIO_PHY_VER); + dev->phy.writes_counter = 1; + } + + if (dev->phy.ops->phy_write) + return dev->phy.ops->phy_write(dev, reg, value); + + b43_write16f(dev, B43_MMIO_PHY_CONTROL, reg); + b43_write16(dev, B43_MMIO_PHY_DATA, value); +} + +void b43_phy_copy(struct b43_wldev *dev, u16 destreg, u16 srcreg) +{ + b43_phy_write(dev, destreg, b43_phy_read(dev, srcreg)); +} + +void b43_phy_mask(struct b43_wldev *dev, u16 offset, u16 mask) +{ + if (dev->phy.ops->phy_maskset) { + assert_mac_suspended(dev); + dev->phy.ops->phy_maskset(dev, offset, mask, 0); + } else { + b43_phy_write(dev, offset, + b43_phy_read(dev, offset) & mask); + } +} + +void b43_phy_set(struct b43_wldev *dev, u16 offset, u16 set) +{ + if (dev->phy.ops->phy_maskset) { + assert_mac_suspended(dev); + dev->phy.ops->phy_maskset(dev, offset, 0xFFFF, set); + } else { + b43_phy_write(dev, offset, + b43_phy_read(dev, offset) | set); + } +} + +void b43_phy_maskset(struct b43_wldev *dev, u16 offset, u16 mask, u16 set) +{ + if (dev->phy.ops->phy_maskset) { + assert_mac_suspended(dev); + dev->phy.ops->phy_maskset(dev, offset, mask, set); + } else { + b43_phy_write(dev, offset, + (b43_phy_read(dev, offset) & mask) | set); + } +} + +void b43_phy_put_into_reset(struct b43_wldev *dev) +{ + u32 tmp; + + switch (dev->dev->bus_type) { +#ifdef CONFIG_B43_BCMA + case B43_BUS_BCMA: + tmp = bcma_aread32(dev->dev->bdev, BCMA_IOCTL); + tmp &= ~B43_BCMA_IOCTL_GMODE; + tmp |= B43_BCMA_IOCTL_PHY_RESET; + tmp |= BCMA_IOCTL_FGC; + bcma_awrite32(dev->dev->bdev, BCMA_IOCTL, tmp); + udelay(1); + + tmp = bcma_aread32(dev->dev->bdev, BCMA_IOCTL); + tmp &= ~BCMA_IOCTL_FGC; + bcma_awrite32(dev->dev->bdev, BCMA_IOCTL, tmp); + udelay(1); + break; +#endif +#ifdef CONFIG_B43_SSB + case B43_BUS_SSB: + tmp = ssb_read32(dev->dev->sdev, SSB_TMSLOW); + tmp &= ~B43_TMSLOW_GMODE; + tmp |= B43_TMSLOW_PHYRESET; + tmp |= SSB_TMSLOW_FGC; + ssb_write32(dev->dev->sdev, SSB_TMSLOW, tmp); + usleep_range(1000, 2000); + + tmp = ssb_read32(dev->dev->sdev, SSB_TMSLOW); + tmp &= ~SSB_TMSLOW_FGC; + ssb_write32(dev->dev->sdev, SSB_TMSLOW, tmp); + usleep_range(1000, 2000); + + break; +#endif + } +} + +void b43_phy_take_out_of_reset(struct b43_wldev *dev) +{ + u32 tmp; + + switch (dev->dev->bus_type) { +#ifdef CONFIG_B43_BCMA + case B43_BUS_BCMA: + /* Unset reset bit (with forcing clock) */ + tmp = bcma_aread32(dev->dev->bdev, BCMA_IOCTL); + tmp &= ~B43_BCMA_IOCTL_PHY_RESET; + tmp &= ~B43_BCMA_IOCTL_PHY_CLKEN; + tmp |= BCMA_IOCTL_FGC; + bcma_awrite32(dev->dev->bdev, BCMA_IOCTL, tmp); + udelay(1); + + /* Do not force clock anymore */ + tmp = bcma_aread32(dev->dev->bdev, BCMA_IOCTL); + tmp &= ~BCMA_IOCTL_FGC; + tmp |= B43_BCMA_IOCTL_PHY_CLKEN; + bcma_awrite32(dev->dev->bdev, BCMA_IOCTL, tmp); + udelay(1); + break; +#endif +#ifdef CONFIG_B43_SSB + case B43_BUS_SSB: + /* Unset reset bit (with forcing clock) */ + tmp = ssb_read32(dev->dev->sdev, SSB_TMSLOW); + tmp &= ~B43_TMSLOW_PHYRESET; + tmp &= ~B43_TMSLOW_PHYCLKEN; + tmp |= SSB_TMSLOW_FGC; + ssb_write32(dev->dev->sdev, SSB_TMSLOW, tmp); + ssb_read32(dev->dev->sdev, SSB_TMSLOW); /* flush */ + usleep_range(1000, 2000); + + tmp = ssb_read32(dev->dev->sdev, SSB_TMSLOW); + tmp &= ~SSB_TMSLOW_FGC; + tmp |= B43_TMSLOW_PHYCLKEN; + ssb_write32(dev->dev->sdev, SSB_TMSLOW, tmp); + ssb_read32(dev->dev->sdev, SSB_TMSLOW); /* flush */ + usleep_range(1000, 2000); + break; +#endif + } +} + +int b43_switch_channel(struct b43_wldev *dev, unsigned int new_channel) +{ + struct b43_phy *phy = &(dev->phy); + u16 channelcookie, savedcookie; + int err; + + /* First we set the channel radio code to prevent the + * firmware from sending ghost packets. + */ + channelcookie = new_channel; + if (b43_current_band(dev->wl) == NL80211_BAND_5GHZ) + channelcookie |= B43_SHM_SH_CHAN_5GHZ; + /* FIXME: set 40Mhz flag if required */ + if (0) + channelcookie |= B43_SHM_SH_CHAN_40MHZ; + savedcookie = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_CHAN); + b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_CHAN, channelcookie); + + /* Now try to switch the PHY hardware channel. */ + err = phy->ops->switch_channel(dev, new_channel); + if (err) + goto err_restore_cookie; + + /* Wait for the radio to tune to the channel and stabilize. */ + msleep(8); + + return 0; + +err_restore_cookie: + b43_shm_write16(dev, B43_SHM_SHARED, + B43_SHM_SH_CHAN, savedcookie); + + return err; +} + +void b43_software_rfkill(struct b43_wldev *dev, bool blocked) +{ + struct b43_phy *phy = &dev->phy; + + b43_mac_suspend(dev); + phy->ops->software_rfkill(dev, blocked); + phy->radio_on = !blocked; + b43_mac_enable(dev); +} + +/* + * b43_phy_txpower_adjust_work - TX power workqueue. + * + * Workqueue for updating the TX power parameters in hardware. + */ +void b43_phy_txpower_adjust_work(struct work_struct *work) +{ + struct b43_wl *wl = container_of(work, struct b43_wl, + txpower_adjust_work); + struct b43_wldev *dev; + + mutex_lock(&wl->mutex); + dev = wl->current_dev; + + if (likely(dev && (b43_status(dev) >= B43_STAT_STARTED))) + dev->phy.ops->adjust_txpower(dev); + + mutex_unlock(&wl->mutex); +} + +void b43_phy_txpower_check(struct b43_wldev *dev, unsigned int flags) +{ + struct b43_phy *phy = &dev->phy; + unsigned long now = jiffies; + enum b43_txpwr_result result; + + if (!(flags & B43_TXPWR_IGNORE_TIME)) { + /* Check if it's time for a TXpower check. */ + if (time_before(now, phy->next_txpwr_check_time)) + return; /* Not yet */ + } + /* The next check will be needed in two seconds, or later. */ + phy->next_txpwr_check_time = round_jiffies(now + (HZ * 2)); + + if ((dev->dev->board_vendor == SSB_BOARDVENDOR_BCM) && + (dev->dev->board_type == SSB_BOARD_BU4306)) + return; /* No software txpower adjustment needed */ + + result = phy->ops->recalc_txpower(dev, !!(flags & B43_TXPWR_IGNORE_TSSI)); + if (result == B43_TXPWR_RES_DONE) + return; /* We are done. */ + B43_WARN_ON(result != B43_TXPWR_RES_NEED_ADJUST); + B43_WARN_ON(phy->ops->adjust_txpower == NULL); + + /* We must adjust the transmission power in hardware. + * Schedule b43_phy_txpower_adjust_work(). */ + ieee80211_queue_work(dev->wl->hw, &dev->wl->txpower_adjust_work); +} + +int b43_phy_shm_tssi_read(struct b43_wldev *dev, u16 shm_offset) +{ + const bool is_ofdm = (shm_offset != B43_SHM_SH_TSSI_CCK); + unsigned int a, b, c, d; + unsigned int average; + u32 tmp; + + tmp = b43_shm_read32(dev, B43_SHM_SHARED, shm_offset); + a = tmp & 0xFF; + b = (tmp >> 8) & 0xFF; + c = (tmp >> 16) & 0xFF; + d = (tmp >> 24) & 0xFF; + if (a == 0 || a == B43_TSSI_MAX || + b == 0 || b == B43_TSSI_MAX || + c == 0 || c == B43_TSSI_MAX || + d == 0 || d == B43_TSSI_MAX) + return -ENOENT; + /* The values are OK. Clear them. */ + tmp = B43_TSSI_MAX | (B43_TSSI_MAX << 8) | + (B43_TSSI_MAX << 16) | (B43_TSSI_MAX << 24); + b43_shm_write32(dev, B43_SHM_SHARED, shm_offset, tmp); + + if (is_ofdm) { + a = (a + 32) & 0x3F; + b = (b + 32) & 0x3F; + c = (c + 32) & 0x3F; + d = (d + 32) & 0x3F; + } + + /* Get the average of the values with 0.5 added to each value. */ + average = (a + b + c + d + 2) / 4; + if (is_ofdm) { + /* Adjust for CCK-boost */ + if (b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_HOSTF1) + & B43_HF_CCKBOOST) + average = (average >= 13) ? (average - 13) : 0; + } + + return average; +} + +void b43_phyop_switch_analog_generic(struct b43_wldev *dev, bool on) +{ + b43_write16(dev, B43_MMIO_PHY0, on ? 0 : 0xF4); +} + + +bool b43_is_40mhz(struct b43_wldev *dev) +{ + return dev->phy.chandef->width == NL80211_CHAN_WIDTH_40; +} + +/* https://bcm-v4.sipsolutions.net/802.11/PHY/N/BmacPhyClkFgc */ +void b43_phy_force_clock(struct b43_wldev *dev, bool force) +{ + u32 tmp; + + WARN_ON(dev->phy.type != B43_PHYTYPE_N && + dev->phy.type != B43_PHYTYPE_HT && + dev->phy.type != B43_PHYTYPE_AC); + + switch (dev->dev->bus_type) { +#ifdef CONFIG_B43_BCMA + case B43_BUS_BCMA: + tmp = bcma_aread32(dev->dev->bdev, BCMA_IOCTL); + if (force) + tmp |= BCMA_IOCTL_FGC; + else + tmp &= ~BCMA_IOCTL_FGC; + bcma_awrite32(dev->dev->bdev, BCMA_IOCTL, tmp); + break; +#endif +#ifdef CONFIG_B43_SSB + case B43_BUS_SSB: + tmp = ssb_read32(dev->dev->sdev, SSB_TMSLOW); + if (force) + tmp |= SSB_TMSLOW_FGC; + else + tmp &= ~SSB_TMSLOW_FGC; + ssb_write32(dev->dev->sdev, SSB_TMSLOW, tmp); + break; +#endif + } +} -- cgit v1.2.3