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/nfc/nfcmrvl/fw_dnld.c | 548 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 548 insertions(+) create mode 100644 drivers/nfc/nfcmrvl/fw_dnld.c (limited to 'drivers/nfc/nfcmrvl/fw_dnld.c') diff --git a/drivers/nfc/nfcmrvl/fw_dnld.c b/drivers/nfc/nfcmrvl/fw_dnld.c new file mode 100644 index 000000000..e83f65596 --- /dev/null +++ b/drivers/nfc/nfcmrvl/fw_dnld.c @@ -0,0 +1,548 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Marvell NFC driver: Firmware downloader + * + * Copyright (C) 2015, Marvell International Ltd. + */ + +#include +#include +#include +#include +#include +#include +#include "nfcmrvl.h" + +#define FW_DNLD_TIMEOUT 15000 + +#define NCI_OP_PROPRIETARY_BOOT_CMD nci_opcode_pack(NCI_GID_PROPRIETARY, \ + NCI_OP_PROP_BOOT_CMD) + +/* FW download states */ + +enum { + STATE_RESET = 0, + STATE_INIT, + STATE_SET_REF_CLOCK, + STATE_SET_HI_CONFIG, + STATE_OPEN_LC, + STATE_FW_DNLD, + STATE_CLOSE_LC, + STATE_BOOT +}; + +enum { + SUBSTATE_WAIT_COMMAND = 0, + SUBSTATE_WAIT_ACK_CREDIT, + SUBSTATE_WAIT_NACK_CREDIT, + SUBSTATE_WAIT_DATA_CREDIT, +}; + +/* + * Patterns for responses + */ + +static const uint8_t nci_pattern_core_reset_ntf[] = { + 0x60, 0x00, 0x02, 0xA0, 0x01 +}; + +static const uint8_t nci_pattern_core_init_rsp[] = { + 0x40, 0x01, 0x11 +}; + +static const uint8_t nci_pattern_core_set_config_rsp[] = { + 0x40, 0x02, 0x02, 0x00, 0x00 +}; + +static const uint8_t nci_pattern_core_conn_create_rsp[] = { + 0x40, 0x04, 0x04, 0x00 +}; + +static const uint8_t nci_pattern_core_conn_close_rsp[] = { + 0x40, 0x05, 0x01, 0x00 +}; + +static const uint8_t nci_pattern_core_conn_credits_ntf[] = { + 0x60, 0x06, 0x03, 0x01, NCI_CORE_LC_CONNID_PROP_FW_DL, 0x01 +}; + +static const uint8_t nci_pattern_proprietary_boot_rsp[] = { + 0x4F, 0x3A, 0x01, 0x00 +}; + +static struct sk_buff *alloc_lc_skb(struct nfcmrvl_private *priv, uint8_t plen) +{ + struct sk_buff *skb; + struct nci_data_hdr *hdr; + + skb = nci_skb_alloc(priv->ndev, (NCI_DATA_HDR_SIZE + plen), GFP_KERNEL); + if (!skb) + return NULL; + + hdr = skb_put(skb, NCI_DATA_HDR_SIZE); + hdr->conn_id = NCI_CORE_LC_CONNID_PROP_FW_DL; + hdr->rfu = 0; + hdr->plen = plen; + + nci_mt_set((__u8 *)hdr, NCI_MT_DATA_PKT); + nci_pbf_set((__u8 *)hdr, NCI_PBF_LAST); + + return skb; +} + +static void fw_dnld_over(struct nfcmrvl_private *priv, u32 error) +{ + if (priv->fw_dnld.fw) { + release_firmware(priv->fw_dnld.fw); + priv->fw_dnld.fw = NULL; + priv->fw_dnld.header = NULL; + priv->fw_dnld.binary_config = NULL; + } + + atomic_set(&priv->ndev->cmd_cnt, 0); + + if (timer_pending(&priv->ndev->cmd_timer)) + del_timer_sync(&priv->ndev->cmd_timer); + + if (timer_pending(&priv->fw_dnld.timer)) + del_timer_sync(&priv->fw_dnld.timer); + + nfc_info(priv->dev, "FW loading over (%d)]\n", error); + + if (error != 0) { + /* failed, halt the chip to avoid power consumption */ + nfcmrvl_chip_halt(priv); + } + + nfc_fw_download_done(priv->ndev->nfc_dev, priv->fw_dnld.name, error); +} + +static void fw_dnld_timeout(struct timer_list *t) +{ + struct nfcmrvl_private *priv = from_timer(priv, t, fw_dnld.timer); + + nfc_err(priv->dev, "FW loading timeout"); + priv->fw_dnld.state = STATE_RESET; + fw_dnld_over(priv, -ETIMEDOUT); +} + +static int process_state_reset(struct nfcmrvl_private *priv, + const struct sk_buff *skb) +{ + if (sizeof(nci_pattern_core_reset_ntf) != skb->len || + memcmp(skb->data, nci_pattern_core_reset_ntf, + sizeof(nci_pattern_core_reset_ntf))) + return -EINVAL; + + nfc_info(priv->dev, "BootROM reset, start fw download\n"); + + /* Start FW download state machine */ + priv->fw_dnld.state = STATE_INIT; + nci_send_cmd(priv->ndev, NCI_OP_CORE_INIT_CMD, 0, NULL); + + return 0; +} + +static int process_state_init(struct nfcmrvl_private *priv, + const struct sk_buff *skb) +{ + struct nci_core_set_config_cmd cmd; + + if (sizeof(nci_pattern_core_init_rsp) >= skb->len || + memcmp(skb->data, nci_pattern_core_init_rsp, + sizeof(nci_pattern_core_init_rsp))) + return -EINVAL; + + cmd.num_params = 1; + cmd.param.id = NFCMRVL_PROP_REF_CLOCK; + cmd.param.len = 4; + memcpy(cmd.param.val, &priv->fw_dnld.header->ref_clock, 4); + + nci_send_cmd(priv->ndev, NCI_OP_CORE_SET_CONFIG_CMD, 3 + cmd.param.len, + &cmd); + + priv->fw_dnld.state = STATE_SET_REF_CLOCK; + return 0; +} + +static void create_lc(struct nfcmrvl_private *priv) +{ + uint8_t param[2] = { NCI_CORE_LC_PROP_FW_DL, 0x0 }; + + priv->fw_dnld.state = STATE_OPEN_LC; + nci_send_cmd(priv->ndev, NCI_OP_CORE_CONN_CREATE_CMD, 2, param); +} + +static int process_state_set_ref_clock(struct nfcmrvl_private *priv, + const struct sk_buff *skb) +{ + struct nci_core_set_config_cmd cmd; + + if (sizeof(nci_pattern_core_set_config_rsp) != skb->len || + memcmp(skb->data, nci_pattern_core_set_config_rsp, skb->len)) + return -EINVAL; + + cmd.num_params = 1; + cmd.param.id = NFCMRVL_PROP_SET_HI_CONFIG; + + switch (priv->phy) { + case NFCMRVL_PHY_UART: + cmd.param.len = 5; + memcpy(cmd.param.val, + &priv->fw_dnld.binary_config->uart.baudrate, + 4); + cmd.param.val[4] = + priv->fw_dnld.binary_config->uart.flow_control; + break; + case NFCMRVL_PHY_I2C: + cmd.param.len = 5; + memcpy(cmd.param.val, + &priv->fw_dnld.binary_config->i2c.clk, + 4); + cmd.param.val[4] = 0; + break; + case NFCMRVL_PHY_SPI: + cmd.param.len = 5; + memcpy(cmd.param.val, + &priv->fw_dnld.binary_config->spi.clk, + 4); + cmd.param.val[4] = 0; + break; + default: + create_lc(priv); + return 0; + } + + priv->fw_dnld.state = STATE_SET_HI_CONFIG; + nci_send_cmd(priv->ndev, NCI_OP_CORE_SET_CONFIG_CMD, 3 + cmd.param.len, + &cmd); + return 0; +} + +static int process_state_set_hi_config(struct nfcmrvl_private *priv, + const struct sk_buff *skb) +{ + if (sizeof(nci_pattern_core_set_config_rsp) != skb->len || + memcmp(skb->data, nci_pattern_core_set_config_rsp, skb->len)) + return -EINVAL; + + create_lc(priv); + return 0; +} + +static int process_state_open_lc(struct nfcmrvl_private *priv, + const struct sk_buff *skb) +{ + if (sizeof(nci_pattern_core_conn_create_rsp) >= skb->len || + memcmp(skb->data, nci_pattern_core_conn_create_rsp, + sizeof(nci_pattern_core_conn_create_rsp))) + return -EINVAL; + + priv->fw_dnld.state = STATE_FW_DNLD; + priv->fw_dnld.substate = SUBSTATE_WAIT_COMMAND; + priv->fw_dnld.offset = priv->fw_dnld.binary_config->offset; + return 0; +} + +static int process_state_fw_dnld(struct nfcmrvl_private *priv, + struct sk_buff *skb) +{ + uint16_t len; + uint16_t comp_len; + struct sk_buff *out_skb; + + switch (priv->fw_dnld.substate) { + case SUBSTATE_WAIT_COMMAND: + /* + * Command format: + * B0..2: NCI header + * B3 : Helper command (0xA5) + * B4..5: le16 data size + * B6..7: le16 data size complement (~) + * B8..N: payload + */ + + /* Remove NCI HDR */ + skb_pull(skb, 3); + if (skb->data[0] != HELPER_CMD_PACKET_FORMAT || skb->len != 5) { + nfc_err(priv->dev, "bad command"); + return -EINVAL; + } + skb_pull(skb, 1); + len = get_unaligned_le16(skb->data); + skb_pull(skb, 2); + comp_len = get_unaligned_le16(skb->data); + memcpy(&comp_len, skb->data, 2); + skb_pull(skb, 2); + if (((~len) & 0xFFFF) != comp_len) { + nfc_err(priv->dev, "bad len complement: %x %x %x", + len, comp_len, (~len & 0xFFFF)); + out_skb = alloc_lc_skb(priv, 1); + if (!out_skb) + return -ENOMEM; + skb_put_u8(out_skb, 0xBF); + nci_send_frame(priv->ndev, out_skb); + priv->fw_dnld.substate = SUBSTATE_WAIT_NACK_CREDIT; + return 0; + } + priv->fw_dnld.chunk_len = len; + out_skb = alloc_lc_skb(priv, 1); + if (!out_skb) + return -ENOMEM; + skb_put_u8(out_skb, HELPER_ACK_PACKET_FORMAT); + nci_send_frame(priv->ndev, out_skb); + priv->fw_dnld.substate = SUBSTATE_WAIT_ACK_CREDIT; + break; + + case SUBSTATE_WAIT_ACK_CREDIT: + if (sizeof(nci_pattern_core_conn_credits_ntf) != skb->len || + memcmp(nci_pattern_core_conn_credits_ntf, skb->data, + skb->len)) { + nfc_err(priv->dev, "bad packet: waiting for credit"); + return -EINVAL; + } + if (priv->fw_dnld.chunk_len == 0) { + /* FW Loading is done */ + uint8_t conn_id = NCI_CORE_LC_CONNID_PROP_FW_DL; + + priv->fw_dnld.state = STATE_CLOSE_LC; + nci_send_cmd(priv->ndev, NCI_OP_CORE_CONN_CLOSE_CMD, + 1, &conn_id); + } else { + out_skb = alloc_lc_skb(priv, priv->fw_dnld.chunk_len); + if (!out_skb) + return -ENOMEM; + skb_put_data(out_skb, + ((uint8_t *)priv->fw_dnld.fw->data) + priv->fw_dnld.offset, + priv->fw_dnld.chunk_len); + nci_send_frame(priv->ndev, out_skb); + priv->fw_dnld.substate = SUBSTATE_WAIT_DATA_CREDIT; + } + break; + + case SUBSTATE_WAIT_DATA_CREDIT: + if (sizeof(nci_pattern_core_conn_credits_ntf) != skb->len || + memcmp(nci_pattern_core_conn_credits_ntf, skb->data, + skb->len)) { + nfc_err(priv->dev, "bad packet: waiting for credit"); + return -EINVAL; + } + priv->fw_dnld.offset += priv->fw_dnld.chunk_len; + priv->fw_dnld.chunk_len = 0; + priv->fw_dnld.substate = SUBSTATE_WAIT_COMMAND; + break; + + case SUBSTATE_WAIT_NACK_CREDIT: + if (sizeof(nci_pattern_core_conn_credits_ntf) != skb->len || + memcmp(nci_pattern_core_conn_credits_ntf, skb->data, + skb->len)) { + nfc_err(priv->dev, "bad packet: waiting for credit"); + return -EINVAL; + } + priv->fw_dnld.substate = SUBSTATE_WAIT_COMMAND; + break; + } + return 0; +} + +static int process_state_close_lc(struct nfcmrvl_private *priv, + const struct sk_buff *skb) +{ + if (sizeof(nci_pattern_core_conn_close_rsp) != skb->len || + memcmp(skb->data, nci_pattern_core_conn_close_rsp, skb->len)) + return -EINVAL; + + priv->fw_dnld.state = STATE_BOOT; + nci_send_cmd(priv->ndev, NCI_OP_PROPRIETARY_BOOT_CMD, 0, NULL); + return 0; +} + +static int process_state_boot(struct nfcmrvl_private *priv, + const struct sk_buff *skb) +{ + if (sizeof(nci_pattern_proprietary_boot_rsp) != skb->len || + memcmp(skb->data, nci_pattern_proprietary_boot_rsp, skb->len)) + return -EINVAL; + + /* + * Update HI config to use the right configuration for the next + * data exchanges. + */ + priv->if_ops->nci_update_config(priv, + &priv->fw_dnld.binary_config->config); + + if (priv->fw_dnld.binary_config == &priv->fw_dnld.header->helper) { + /* + * This is the case where an helper was needed and we have + * uploaded it. Now we have to wait the next RESET NTF to start + * FW download. + */ + priv->fw_dnld.state = STATE_RESET; + priv->fw_dnld.binary_config = &priv->fw_dnld.header->firmware; + nfc_info(priv->dev, "FW loading: helper loaded"); + } else { + nfc_info(priv->dev, "FW loading: firmware loaded"); + fw_dnld_over(priv, 0); + } + return 0; +} + +static void fw_dnld_rx_work(struct work_struct *work) +{ + int ret; + struct sk_buff *skb; + struct nfcmrvl_fw_dnld *fw_dnld = container_of(work, + struct nfcmrvl_fw_dnld, + rx_work); + struct nfcmrvl_private *priv = container_of(fw_dnld, + struct nfcmrvl_private, + fw_dnld); + + while ((skb = skb_dequeue(&fw_dnld->rx_q))) { + nfc_send_to_raw_sock(priv->ndev->nfc_dev, skb, + RAW_PAYLOAD_NCI, NFC_DIRECTION_RX); + switch (fw_dnld->state) { + case STATE_RESET: + ret = process_state_reset(priv, skb); + break; + case STATE_INIT: + ret = process_state_init(priv, skb); + break; + case STATE_SET_REF_CLOCK: + ret = process_state_set_ref_clock(priv, skb); + break; + case STATE_SET_HI_CONFIG: + ret = process_state_set_hi_config(priv, skb); + break; + case STATE_OPEN_LC: + ret = process_state_open_lc(priv, skb); + break; + case STATE_FW_DNLD: + ret = process_state_fw_dnld(priv, skb); + break; + case STATE_CLOSE_LC: + ret = process_state_close_lc(priv, skb); + break; + case STATE_BOOT: + ret = process_state_boot(priv, skb); + break; + default: + ret = -EFAULT; + } + + kfree_skb(skb); + + if (ret != 0) { + nfc_err(priv->dev, "FW loading error"); + fw_dnld_over(priv, ret); + break; + } + } +} + +int nfcmrvl_fw_dnld_init(struct nfcmrvl_private *priv) +{ + char name[32]; + + INIT_WORK(&priv->fw_dnld.rx_work, fw_dnld_rx_work); + snprintf(name, sizeof(name), "%s_nfcmrvl_fw_dnld_rx_wq", + dev_name(&priv->ndev->nfc_dev->dev)); + priv->fw_dnld.rx_wq = create_singlethread_workqueue(name); + if (!priv->fw_dnld.rx_wq) + return -ENOMEM; + skb_queue_head_init(&priv->fw_dnld.rx_q); + return 0; +} + +void nfcmrvl_fw_dnld_deinit(struct nfcmrvl_private *priv) +{ + destroy_workqueue(priv->fw_dnld.rx_wq); +} + +void nfcmrvl_fw_dnld_recv_frame(struct nfcmrvl_private *priv, + struct sk_buff *skb) +{ + /* Discard command timer */ + if (timer_pending(&priv->ndev->cmd_timer)) + del_timer_sync(&priv->ndev->cmd_timer); + + /* Allow next command */ + atomic_set(&priv->ndev->cmd_cnt, 1); + + /* Queue and trigger rx work */ + skb_queue_tail(&priv->fw_dnld.rx_q, skb); + queue_work(priv->fw_dnld.rx_wq, &priv->fw_dnld.rx_work); +} + +void nfcmrvl_fw_dnld_abort(struct nfcmrvl_private *priv) +{ + fw_dnld_over(priv, -EHOSTDOWN); +} + +int nfcmrvl_fw_dnld_start(struct nci_dev *ndev, const char *firmware_name) +{ + struct nfcmrvl_private *priv = nci_get_drvdata(ndev); + struct nfcmrvl_fw_dnld *fw_dnld = &priv->fw_dnld; + int res; + + if (!priv->support_fw_dnld) + return -ENOTSUPP; + + if (!firmware_name || !firmware_name[0]) + return -EINVAL; + + strcpy(fw_dnld->name, firmware_name); + + /* + * Retrieve FW binary file and parse it to initialize FW download + * state machine. + */ + + /* Retrieve FW binary */ + res = request_firmware(&fw_dnld->fw, firmware_name, + &ndev->nfc_dev->dev); + if (res < 0) { + nfc_err(priv->dev, "failed to retrieve FW %s", firmware_name); + return -ENOENT; + } + + fw_dnld->header = (const struct nfcmrvl_fw *) priv->fw_dnld.fw->data; + + if (fw_dnld->header->magic != NFCMRVL_FW_MAGIC || + fw_dnld->header->phy != priv->phy) { + nfc_err(priv->dev, "bad firmware binary %s magic=0x%x phy=%d", + firmware_name, fw_dnld->header->magic, + fw_dnld->header->phy); + release_firmware(fw_dnld->fw); + fw_dnld->header = NULL; + return -EINVAL; + } + + if (fw_dnld->header->helper.offset != 0) { + nfc_info(priv->dev, "loading helper"); + fw_dnld->binary_config = &fw_dnld->header->helper; + } else { + nfc_info(priv->dev, "loading firmware"); + fw_dnld->binary_config = &fw_dnld->header->firmware; + } + + /* Configure a timer for timeout */ + timer_setup(&priv->fw_dnld.timer, fw_dnld_timeout, 0); + mod_timer(&priv->fw_dnld.timer, + jiffies + msecs_to_jiffies(FW_DNLD_TIMEOUT)); + + /* Ronfigure HI to be sure that it is the bootrom values */ + priv->if_ops->nci_update_config(priv, + &fw_dnld->header->bootrom.config); + + /* Allow first command */ + atomic_set(&priv->ndev->cmd_cnt, 1); + + /* First, reset the chip */ + priv->fw_dnld.state = STATE_RESET; + nfcmrvl_chip_reset(priv); + + /* Now wait for CORE_RESET_NTF or timeout */ + + return 0; +} -- cgit v1.2.3