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/bluetooth/btbcm.c | 740 ++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 740 insertions(+) create mode 100644 drivers/bluetooth/btbcm.c (limited to 'drivers/bluetooth/btbcm.c') diff --git a/drivers/bluetooth/btbcm.c b/drivers/bluetooth/btbcm.c new file mode 100644 index 000000000..3006e2a0f --- /dev/null +++ b/drivers/bluetooth/btbcm.c @@ -0,0 +1,740 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * + * Bluetooth support for Broadcom devices + * + * Copyright (C) 2015 Intel Corporation + */ + +#include +#include +#include +#include +#include + +#include +#include + +#include "btbcm.h" + +#define VERSION "0.1" + +#define BDADDR_BCM20702A0 (&(bdaddr_t) {{0x00, 0xa0, 0x02, 0x70, 0x20, 0x00}}) +#define BDADDR_BCM20702A1 (&(bdaddr_t) {{0x00, 0x00, 0xa0, 0x02, 0x70, 0x20}}) +#define BDADDR_BCM2076B1 (&(bdaddr_t) {{0x79, 0x56, 0x00, 0xa0, 0x76, 0x20}}) +#define BDADDR_BCM43430A0 (&(bdaddr_t) {{0xac, 0x1f, 0x12, 0xa0, 0x43, 0x43}}) +#define BDADDR_BCM4324B3 (&(bdaddr_t) {{0x00, 0x00, 0x00, 0xb3, 0x24, 0x43}}) +#define BDADDR_BCM4330B1 (&(bdaddr_t) {{0x00, 0x00, 0x00, 0xb1, 0x30, 0x43}}) +#define BDADDR_BCM4334B0 (&(bdaddr_t) {{0x00, 0x00, 0x00, 0xb0, 0x34, 0x43}}) +#define BDADDR_BCM4345C5 (&(bdaddr_t) {{0xac, 0x1f, 0x00, 0xc5, 0x45, 0x43}}) +#define BDADDR_BCM43341B (&(bdaddr_t) {{0xac, 0x1f, 0x00, 0x1b, 0x34, 0x43}}) + +#define BCM_FW_NAME_LEN 64 +#define BCM_FW_NAME_COUNT_MAX 4 +/* For kmalloc-ing the fw-name array instead of putting it on the stack */ +typedef char bcm_fw_name[BCM_FW_NAME_LEN]; + +int btbcm_check_bdaddr(struct hci_dev *hdev) +{ + struct hci_rp_read_bd_addr *bda; + struct sk_buff *skb; + + skb = __hci_cmd_sync(hdev, HCI_OP_READ_BD_ADDR, 0, NULL, + HCI_INIT_TIMEOUT); + if (IS_ERR(skb)) { + int err = PTR_ERR(skb); + + bt_dev_err(hdev, "BCM: Reading device address failed (%d)", err); + return err; + } + + if (skb->len != sizeof(*bda)) { + bt_dev_err(hdev, "BCM: Device address length mismatch"); + kfree_skb(skb); + return -EIO; + } + + bda = (struct hci_rp_read_bd_addr *)skb->data; + + /* Check if the address indicates a controller with either an + * invalid or default address. In both cases the device needs + * to be marked as not having a valid address. + * + * The address 00:20:70:02:A0:00 indicates a BCM20702A0 controller + * with no configured address. + * + * The address 20:70:02:A0:00:00 indicates a BCM20702A1 controller + * with no configured address. + * + * The address 20:76:A0:00:56:79 indicates a BCM2076B1 controller + * with no configured address. + * + * The address 43:24:B3:00:00:00 indicates a BCM4324B3 controller + * with waiting for configuration state. + * + * The address 43:30:B1:00:00:00 indicates a BCM4330B1 controller + * with waiting for configuration state. + * + * The address 43:43:A0:12:1F:AC indicates a BCM43430A0 controller + * with no configured address. + */ + if (!bacmp(&bda->bdaddr, BDADDR_BCM20702A0) || + !bacmp(&bda->bdaddr, BDADDR_BCM20702A1) || + !bacmp(&bda->bdaddr, BDADDR_BCM2076B1) || + !bacmp(&bda->bdaddr, BDADDR_BCM4324B3) || + !bacmp(&bda->bdaddr, BDADDR_BCM4330B1) || + !bacmp(&bda->bdaddr, BDADDR_BCM4334B0) || + !bacmp(&bda->bdaddr, BDADDR_BCM4345C5) || + !bacmp(&bda->bdaddr, BDADDR_BCM43430A0) || + !bacmp(&bda->bdaddr, BDADDR_BCM43341B)) { + bt_dev_info(hdev, "BCM: Using default device address (%pMR)", + &bda->bdaddr); + set_bit(HCI_QUIRK_INVALID_BDADDR, &hdev->quirks); + } + + kfree_skb(skb); + + return 0; +} +EXPORT_SYMBOL_GPL(btbcm_check_bdaddr); + +int btbcm_set_bdaddr(struct hci_dev *hdev, const bdaddr_t *bdaddr) +{ + struct sk_buff *skb; + int err; + + skb = __hci_cmd_sync(hdev, 0xfc01, 6, bdaddr, HCI_INIT_TIMEOUT); + if (IS_ERR(skb)) { + err = PTR_ERR(skb); + bt_dev_err(hdev, "BCM: Change address command failed (%d)", err); + return err; + } + kfree_skb(skb); + + return 0; +} +EXPORT_SYMBOL_GPL(btbcm_set_bdaddr); + +int btbcm_read_pcm_int_params(struct hci_dev *hdev, + struct bcm_set_pcm_int_params *params) +{ + struct sk_buff *skb; + int err = 0; + + skb = __hci_cmd_sync(hdev, 0xfc1d, 0, NULL, HCI_INIT_TIMEOUT); + if (IS_ERR(skb)) { + err = PTR_ERR(skb); + bt_dev_err(hdev, "BCM: Read PCM int params failed (%d)", err); + return err; + } + + if (skb->len != 6 || skb->data[0]) { + bt_dev_err(hdev, "BCM: Read PCM int params length mismatch"); + kfree_skb(skb); + return -EIO; + } + + if (params) + memcpy(params, skb->data + 1, 5); + + kfree_skb(skb); + + return 0; +} +EXPORT_SYMBOL_GPL(btbcm_read_pcm_int_params); + +int btbcm_write_pcm_int_params(struct hci_dev *hdev, + const struct bcm_set_pcm_int_params *params) +{ + struct sk_buff *skb; + int err; + + skb = __hci_cmd_sync(hdev, 0xfc1c, 5, params, HCI_INIT_TIMEOUT); + if (IS_ERR(skb)) { + err = PTR_ERR(skb); + bt_dev_err(hdev, "BCM: Write PCM int params failed (%d)", err); + return err; + } + kfree_skb(skb); + + return 0; +} +EXPORT_SYMBOL_GPL(btbcm_write_pcm_int_params); + +int btbcm_patchram(struct hci_dev *hdev, const struct firmware *fw) +{ + const struct hci_command_hdr *cmd; + const u8 *fw_ptr; + size_t fw_size; + struct sk_buff *skb; + u16 opcode; + int err = 0; + + /* Start Download */ + skb = __hci_cmd_sync(hdev, 0xfc2e, 0, NULL, HCI_INIT_TIMEOUT); + if (IS_ERR(skb)) { + err = PTR_ERR(skb); + bt_dev_err(hdev, "BCM: Download Minidrv command failed (%d)", + err); + goto done; + } + kfree_skb(skb); + + /* 50 msec delay after Download Minidrv completes */ + msleep(50); + + fw_ptr = fw->data; + fw_size = fw->size; + + while (fw_size >= sizeof(*cmd)) { + const u8 *cmd_param; + + cmd = (struct hci_command_hdr *)fw_ptr; + fw_ptr += sizeof(*cmd); + fw_size -= sizeof(*cmd); + + if (fw_size < cmd->plen) { + bt_dev_err(hdev, "BCM: Patch is corrupted"); + err = -EINVAL; + goto done; + } + + cmd_param = fw_ptr; + fw_ptr += cmd->plen; + fw_size -= cmd->plen; + + opcode = le16_to_cpu(cmd->opcode); + + skb = __hci_cmd_sync(hdev, opcode, cmd->plen, cmd_param, + HCI_INIT_TIMEOUT); + if (IS_ERR(skb)) { + err = PTR_ERR(skb); + bt_dev_err(hdev, "BCM: Patch command %04x failed (%d)", + opcode, err); + goto done; + } + kfree_skb(skb); + } + + /* 250 msec delay after Launch Ram completes */ + msleep(250); + +done: + return err; +} +EXPORT_SYMBOL(btbcm_patchram); + +static int btbcm_reset(struct hci_dev *hdev) +{ + struct sk_buff *skb; + + skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT); + if (IS_ERR(skb)) { + int err = PTR_ERR(skb); + + bt_dev_err(hdev, "BCM: Reset failed (%d)", err); + return err; + } + kfree_skb(skb); + + /* 100 msec delay for module to complete reset process */ + msleep(100); + + return 0; +} + +static struct sk_buff *btbcm_read_local_name(struct hci_dev *hdev) +{ + struct sk_buff *skb; + + skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_NAME, 0, NULL, + HCI_INIT_TIMEOUT); + if (IS_ERR(skb)) { + bt_dev_err(hdev, "BCM: Reading local name failed (%ld)", + PTR_ERR(skb)); + return skb; + } + + if (skb->len != sizeof(struct hci_rp_read_local_name)) { + bt_dev_err(hdev, "BCM: Local name length mismatch"); + kfree_skb(skb); + return ERR_PTR(-EIO); + } + + return skb; +} + +static struct sk_buff *btbcm_read_local_version(struct hci_dev *hdev) +{ + struct sk_buff *skb; + + skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_VERSION, 0, NULL, + HCI_INIT_TIMEOUT); + if (IS_ERR(skb)) { + bt_dev_err(hdev, "BCM: Reading local version info failed (%ld)", + PTR_ERR(skb)); + return skb; + } + + if (skb->len != sizeof(struct hci_rp_read_local_version)) { + bt_dev_err(hdev, "BCM: Local version length mismatch"); + kfree_skb(skb); + return ERR_PTR(-EIO); + } + + return skb; +} + +static struct sk_buff *btbcm_read_verbose_config(struct hci_dev *hdev) +{ + struct sk_buff *skb; + + skb = __hci_cmd_sync(hdev, 0xfc79, 0, NULL, HCI_INIT_TIMEOUT); + if (IS_ERR(skb)) { + bt_dev_err(hdev, "BCM: Read verbose config info failed (%ld)", + PTR_ERR(skb)); + return skb; + } + + if (skb->len != 7) { + bt_dev_err(hdev, "BCM: Verbose config length mismatch"); + kfree_skb(skb); + return ERR_PTR(-EIO); + } + + return skb; +} + +static struct sk_buff *btbcm_read_controller_features(struct hci_dev *hdev) +{ + struct sk_buff *skb; + + skb = __hci_cmd_sync(hdev, 0xfc6e, 0, NULL, HCI_INIT_TIMEOUT); + if (IS_ERR(skb)) { + bt_dev_err(hdev, "BCM: Read controller features failed (%ld)", + PTR_ERR(skb)); + return skb; + } + + if (skb->len != 9) { + bt_dev_err(hdev, "BCM: Controller features length mismatch"); + kfree_skb(skb); + return ERR_PTR(-EIO); + } + + return skb; +} + +static struct sk_buff *btbcm_read_usb_product(struct hci_dev *hdev) +{ + struct sk_buff *skb; + + skb = __hci_cmd_sync(hdev, 0xfc5a, 0, NULL, HCI_INIT_TIMEOUT); + if (IS_ERR(skb)) { + bt_dev_err(hdev, "BCM: Read USB product info failed (%ld)", + PTR_ERR(skb)); + return skb; + } + + if (skb->len != 5) { + bt_dev_err(hdev, "BCM: USB product length mismatch"); + kfree_skb(skb); + return ERR_PTR(-EIO); + } + + return skb; +} + +static const struct dmi_system_id disable_broken_read_transmit_power[] = { + { + .matches = { + DMI_MATCH(DMI_BOARD_VENDOR, "Apple Inc."), + DMI_MATCH(DMI_PRODUCT_NAME, "MacBookPro16,1"), + }, + }, + { + .matches = { + DMI_MATCH(DMI_BOARD_VENDOR, "Apple Inc."), + DMI_MATCH(DMI_PRODUCT_NAME, "MacBookPro16,2"), + }, + }, + { + .matches = { + DMI_MATCH(DMI_BOARD_VENDOR, "Apple Inc."), + DMI_MATCH(DMI_PRODUCT_NAME, "MacBookPro16,4"), + }, + }, + { + .matches = { + DMI_MATCH(DMI_BOARD_VENDOR, "Apple Inc."), + DMI_MATCH(DMI_PRODUCT_NAME, "MacBookAir8,1"), + }, + }, + { + .matches = { + DMI_MATCH(DMI_BOARD_VENDOR, "Apple Inc."), + DMI_MATCH(DMI_PRODUCT_NAME, "MacBookAir8,2"), + }, + }, + { + .matches = { + DMI_MATCH(DMI_BOARD_VENDOR, "Apple Inc."), + DMI_MATCH(DMI_PRODUCT_NAME, "iMac20,1"), + }, + }, + { + .matches = { + DMI_MATCH(DMI_BOARD_VENDOR, "Apple Inc."), + DMI_MATCH(DMI_PRODUCT_NAME, "iMac20,2"), + }, + }, + { } +}; + +static int btbcm_read_info(struct hci_dev *hdev) +{ + struct sk_buff *skb; + + /* Read Verbose Config Version Info */ + skb = btbcm_read_verbose_config(hdev); + if (IS_ERR(skb)) + return PTR_ERR(skb); + + bt_dev_info(hdev, "BCM: chip id %u", skb->data[1]); + kfree_skb(skb); + + return 0; +} + +static int btbcm_print_controller_features(struct hci_dev *hdev) +{ + struct sk_buff *skb; + + /* Read Controller Features */ + skb = btbcm_read_controller_features(hdev); + if (IS_ERR(skb)) + return PTR_ERR(skb); + + bt_dev_info(hdev, "BCM: features 0x%2.2x", skb->data[1]); + kfree_skb(skb); + + /* Read DMI and disable broken Read LE Min/Max Tx Power */ + if (dmi_first_match(disable_broken_read_transmit_power)) + set_bit(HCI_QUIRK_BROKEN_READ_TRANSMIT_POWER, &hdev->quirks); + + return 0; +} + +static int btbcm_print_local_name(struct hci_dev *hdev) +{ + struct sk_buff *skb; + + /* Read Local Name */ + skb = btbcm_read_local_name(hdev); + if (IS_ERR(skb)) + return PTR_ERR(skb); + + bt_dev_info(hdev, "%s", (char *)(skb->data + 1)); + kfree_skb(skb); + + return 0; +} + +struct bcm_subver_table { + u16 subver; + const char *name; +}; + +static const struct bcm_subver_table bcm_uart_subver_table[] = { + { 0x1111, "BCM4362A2" }, /* 000.017.017 */ + { 0x4103, "BCM4330B1" }, /* 002.001.003 */ + { 0x410d, "BCM4334B0" }, /* 002.001.013 */ + { 0x410e, "BCM43341B0" }, /* 002.001.014 */ + { 0x4204, "BCM2076B1" }, /* 002.002.004 */ + { 0x4406, "BCM4324B3" }, /* 002.004.006 */ + { 0x4606, "BCM4324B5" }, /* 002.006.006 */ + { 0x6109, "BCM4335C0" }, /* 003.001.009 */ + { 0x610c, "BCM4354" }, /* 003.001.012 */ + { 0x2122, "BCM4343A0" }, /* 001.001.034 */ + { 0x2209, "BCM43430A1" }, /* 001.002.009 */ + { 0x6119, "BCM4345C0" }, /* 003.001.025 */ + { 0x6606, "BCM4345C5" }, /* 003.006.006 */ + { 0x230f, "BCM4356A2" }, /* 001.003.015 */ + { 0x220e, "BCM20702A1" }, /* 001.002.014 */ + { 0x420d, "BCM4349B1" }, /* 002.002.013 */ + { 0x420e, "BCM4349B1" }, /* 002.002.014 */ + { 0x4217, "BCM4329B1" }, /* 002.002.023 */ + { 0x6106, "BCM4359C0" }, /* 003.001.006 */ + { 0x4106, "BCM4335A0" }, /* 002.001.006 */ + { 0x410c, "BCM43430B0" }, /* 002.001.012 */ + { 0x2119, "BCM4373A0" }, /* 001.001.025 */ + { } +}; + +static const struct bcm_subver_table bcm_usb_subver_table[] = { + { 0x2105, "BCM20703A1" }, /* 001.001.005 */ + { 0x210b, "BCM43142A0" }, /* 001.001.011 */ + { 0x2112, "BCM4314A0" }, /* 001.001.018 */ + { 0x2118, "BCM20702A0" }, /* 001.001.024 */ + { 0x2126, "BCM4335A0" }, /* 001.001.038 */ + { 0x220e, "BCM20702A1" }, /* 001.002.014 */ + { 0x230f, "BCM4356A2" }, /* 001.003.015 */ + { 0x4106, "BCM4335B0" }, /* 002.001.006 */ + { 0x410e, "BCM20702B0" }, /* 002.001.014 */ + { 0x6109, "BCM4335C0" }, /* 003.001.009 */ + { 0x610c, "BCM4354" }, /* 003.001.012 */ + { 0x6607, "BCM4350C5" }, /* 003.006.007 */ + { } +}; + +/* + * This currently only looks up the device tree board appendix, + * but can be expanded to other mechanisms. + */ +static const char *btbcm_get_board_name(struct device *dev) +{ +#ifdef CONFIG_OF + struct device_node *root; + char *board_type; + const char *tmp; + int len; + int i; + + root = of_find_node_by_path("/"); + if (!root) + return NULL; + + if (of_property_read_string_index(root, "compatible", 0, &tmp)) + return NULL; + + /* get rid of any '/' in the compatible string */ + len = strlen(tmp) + 1; + board_type = devm_kzalloc(dev, len, GFP_KERNEL); + strscpy(board_type, tmp, len); + for (i = 0; i < board_type[i]; i++) { + if (board_type[i] == '/') + board_type[i] = '-'; + } + of_node_put(root); + + return board_type; +#else + return NULL; +#endif +} + +int btbcm_initialize(struct hci_dev *hdev, bool *fw_load_done, bool use_autobaud_mode) +{ + u16 subver, rev, pid, vid; + struct sk_buff *skb; + struct hci_rp_read_local_version *ver; + const struct bcm_subver_table *bcm_subver_table; + const char *hw_name = NULL; + const char *board_name; + char postfix[16] = ""; + int fw_name_count = 0; + bcm_fw_name *fw_name; + const struct firmware *fw; + int i, err; + + board_name = btbcm_get_board_name(&hdev->dev); + + /* Reset */ + err = btbcm_reset(hdev); + if (err) + return err; + + /* Read Local Version Info */ + skb = btbcm_read_local_version(hdev); + if (IS_ERR(skb)) + return PTR_ERR(skb); + + ver = (struct hci_rp_read_local_version *)skb->data; + rev = le16_to_cpu(ver->hci_rev); + subver = le16_to_cpu(ver->lmp_subver); + kfree_skb(skb); + + /* Read controller information */ + if (!(*fw_load_done)) { + err = btbcm_read_info(hdev); + if (err) + return err; + } + + if (!use_autobaud_mode) { + err = btbcm_print_controller_features(hdev); + if (err) + return err; + + err = btbcm_print_local_name(hdev); + if (err) + return err; + } + + bcm_subver_table = (hdev->bus == HCI_USB) ? bcm_usb_subver_table : + bcm_uart_subver_table; + + for (i = 0; bcm_subver_table[i].name; i++) { + if (subver == bcm_subver_table[i].subver) { + hw_name = bcm_subver_table[i].name; + break; + } + } + + bt_dev_info(hdev, "%s (%3.3u.%3.3u.%3.3u) build %4.4u", + hw_name ? hw_name : "BCM", (subver & 0xe000) >> 13, + (subver & 0x1f00) >> 8, (subver & 0x00ff), rev & 0x0fff); + + if (*fw_load_done) + return 0; + + if (hdev->bus == HCI_USB) { + /* Read USB Product Info */ + skb = btbcm_read_usb_product(hdev); + if (IS_ERR(skb)) + return PTR_ERR(skb); + + vid = get_unaligned_le16(skb->data + 1); + pid = get_unaligned_le16(skb->data + 3); + kfree_skb(skb); + + snprintf(postfix, sizeof(postfix), "-%4.4x-%4.4x", vid, pid); + } + + fw_name = kmalloc(BCM_FW_NAME_COUNT_MAX * BCM_FW_NAME_LEN, GFP_KERNEL); + if (!fw_name) + return -ENOMEM; + + if (hw_name) { + if (board_name) { + snprintf(fw_name[fw_name_count], BCM_FW_NAME_LEN, + "brcm/%s%s.%s.hcd", hw_name, postfix, board_name); + fw_name_count++; + } + snprintf(fw_name[fw_name_count], BCM_FW_NAME_LEN, + "brcm/%s%s.hcd", hw_name, postfix); + fw_name_count++; + } + + if (board_name) { + snprintf(fw_name[fw_name_count], BCM_FW_NAME_LEN, + "brcm/BCM%s.%s.hcd", postfix, board_name); + fw_name_count++; + } + snprintf(fw_name[fw_name_count], BCM_FW_NAME_LEN, + "brcm/BCM%s.hcd", postfix); + fw_name_count++; + + for (i = 0; i < fw_name_count; i++) { + err = firmware_request_nowarn(&fw, fw_name[i], &hdev->dev); + if (err == 0) { + bt_dev_info(hdev, "%s '%s' Patch", + hw_name ? hw_name : "BCM", fw_name[i]); + *fw_load_done = true; + break; + } + } + + if (*fw_load_done) { + err = btbcm_patchram(hdev, fw); + if (err) + bt_dev_info(hdev, "BCM: Patch failed (%d)", err); + + release_firmware(fw); + } else { + bt_dev_err(hdev, "BCM: firmware Patch file not found, tried:"); + for (i = 0; i < fw_name_count; i++) + bt_dev_err(hdev, "BCM: '%s'", fw_name[i]); + } + + kfree(fw_name); + return 0; +} +EXPORT_SYMBOL_GPL(btbcm_initialize); + +int btbcm_finalize(struct hci_dev *hdev, bool *fw_load_done, bool use_autobaud_mode) +{ + int err; + + /* Re-initialize if necessary */ + if (*fw_load_done) { + err = btbcm_initialize(hdev, fw_load_done, use_autobaud_mode); + if (err) + return err; + } + + btbcm_check_bdaddr(hdev); + + set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks); + + return 0; +} +EXPORT_SYMBOL_GPL(btbcm_finalize); + +int btbcm_setup_patchram(struct hci_dev *hdev) +{ + bool fw_load_done = false; + bool use_autobaud_mode = false; + int err; + + /* Initialize */ + err = btbcm_initialize(hdev, &fw_load_done, use_autobaud_mode); + if (err) + return err; + + /* Re-initialize after loading Patch */ + return btbcm_finalize(hdev, &fw_load_done, use_autobaud_mode); +} +EXPORT_SYMBOL_GPL(btbcm_setup_patchram); + +int btbcm_setup_apple(struct hci_dev *hdev) +{ + struct sk_buff *skb; + int err; + + /* Reset */ + err = btbcm_reset(hdev); + if (err) + return err; + + /* Read Verbose Config Version Info */ + skb = btbcm_read_verbose_config(hdev); + if (!IS_ERR(skb)) { + bt_dev_info(hdev, "BCM: chip id %u build %4.4u", + skb->data[1], get_unaligned_le16(skb->data + 5)); + kfree_skb(skb); + } + + /* Read USB Product Info */ + skb = btbcm_read_usb_product(hdev); + if (!IS_ERR(skb)) { + bt_dev_info(hdev, "BCM: product %4.4x:%4.4x", + get_unaligned_le16(skb->data + 1), + get_unaligned_le16(skb->data + 3)); + kfree_skb(skb); + } + + /* Read Controller Features */ + skb = btbcm_read_controller_features(hdev); + if (!IS_ERR(skb)) { + bt_dev_info(hdev, "BCM: features 0x%2.2x", skb->data[1]); + kfree_skb(skb); + } + + /* Read Local Name */ + skb = btbcm_read_local_name(hdev); + if (!IS_ERR(skb)) { + bt_dev_info(hdev, "%s", (char *)(skb->data + 1)); + kfree_skb(skb); + } + + set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks); + + return 0; +} +EXPORT_SYMBOL_GPL(btbcm_setup_apple); + +MODULE_AUTHOR("Marcel Holtmann "); +MODULE_DESCRIPTION("Bluetooth support for Broadcom devices ver " VERSION); +MODULE_VERSION(VERSION); +MODULE_LICENSE("GPL"); -- cgit v1.2.3