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authorLinus Torvalds <torvalds@linux-foundation.org>2024-01-11 10:07:29 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2024-01-11 10:07:29 -0800
commit3e7aeb78ab01c2c2f0e1f784e5ddec88fcd3d106 (patch)
treebdbfd45f8d8e967b06ed2d9cb92f67f686d02659 /drivers/net/wireless/intersil/orinoco/orinoco_usb.c
parentde927f6c0b07d9e698416c5b287c521b07694cac (diff)
parenta7fe0881d9b78d402bbd9067dd4503a57c57a1d9 (diff)
Merge tag 'net-next-6.8' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
Pull networking updates from Paolo Abeni: "The most interesting thing is probably the networking structs reorganization and a significant amount of changes is around self-tests. Core & protocols: - Analyze and reorganize core networking structs (socks, netdev, netns, mibs) to optimize cacheline consumption and set up build time warnings to safeguard against future header changes This improves TCP performances with many concurrent connections up to 40% - Add page-pool netlink-based introspection, exposing the memory usage and recycling stats. This helps indentify bad PP users and possible leaks - Refine TCP/DCCP source port selection to no longer favor even source port at connect() time when IP_LOCAL_PORT_RANGE is set. This lowers the time taken by connect() for hosts having many active connections to the same destination - Refactor the TCP bind conflict code, shrinking related socket structs - Refactor TCP SYN-Cookie handling, as a preparation step to allow arbitrary SYN-Cookie processing via eBPF - Tune optmem_max for 0-copy usage, increasing the default value to 128KB and namespecifying it - Allow coalescing for cloned skbs coming from page pools, improving RX performances with some common configurations - Reduce extension header parsing overhead at GRO time - Add bridge MDB bulk deletion support, allowing user-space to request the deletion of matching entries - Reorder nftables struct members, to keep data accessed by the datapath first - Introduce TC block ports tracking and use. This allows supporting multicast-like behavior at the TC layer - Remove UAPI support for retired TC qdiscs (dsmark, CBQ and ATM) and classifiers (RSVP and tcindex) - More data-race annotations - Extend the diag interface to dump TCP bound-only sockets - Conditional notification of events for TC qdisc class and actions - Support for WPAN dynamic associations with nearby devices, to form a sub-network using a specific PAN ID - Implement SMCv2.1 virtual ISM device support - Add support for Batman-avd mulicast packet type BPF: - Tons of verifier improvements: - BPF register bounds logic and range support along with a large test suite - log improvements - complete precision tracking support for register spills - track aligned STACK_ZERO cases as imprecise spilled registers. This improves the verifier "instructions processed" metric from single digit to 50-60% for some programs - support for user's global BPF subprogram arguments with few commonly requested annotations for a better developer experience - support tracking of BPF_JNE which helps cases when the compiler transforms (unsigned) "a > 0" into "if a == 0 goto xxx" and the like - several fixes - Add initial TX metadata implementation for AF_XDP with support in mlx5 and stmmac drivers. Two types of offloads are supported right now, that is, TX timestamp and TX checksum offload - Fix kCFI bugs in BPF all forms of indirect calls from BPF into kernel and from kernel into BPF work with CFI enabled. This allows BPF to work with CONFIG_FINEIBT=y - Change BPF verifier logic to validate global subprograms lazily instead of unconditionally before the main program, so they can be guarded using BPF CO-RE techniques - Support uid/gid options when mounting bpffs - Add a new kfunc which acquires the associated cgroup of a task within a specific cgroup v1 hierarchy where the latter is identified by its id - Extend verifier to allow bpf_refcount_acquire() of a map value field obtained via direct load which is a use-case needed in sched_ext - Add BPF link_info support for uprobe multi link along with bpftool integration for the latter - Support for VLAN tag in XDP hints - Remove deprecated bpfilter kernel leftovers given the project is developed in user-space (https://github.com/facebook/bpfilter) Misc: - Support for parellel TC self-tests execution - Increase MPTCP self-tests coverage - Updated the bridge documentation, including several so-far undocumented features - Convert all the net self-tests to run in unique netns, to avoid random failures due to conflict and allow concurrent runs - Add TCP-AO self-tests - Add kunit tests for both cfg80211 and mac80211 - Autogenerate Netlink families documentation from YAML spec - Add yml-gen support for fixed headers and recursive nests, the tool can now generate user-space code for all genetlink families for which we have specs - A bunch of additional module descriptions fixes - Catch incorrect freeing of pages belonging to a page pool Driver API: - Rust abstractions for network PHY drivers; do not cover yet the full C API, but already allow implementing functional PHY drivers in rust - Introduce queue and NAPI support in the netdev Netlink interface, allowing complete access to the device <> NAPIs <> queues relationship - Introduce notifications filtering for devlink to allow control application scale to thousands of instances - Improve PHY validation, requesting rate matching information for each ethtool link mode supported by both the PHY and host - Add support for ethtool symmetric-xor RSS hash - ACPI based Wifi band RFI (WBRF) mitigation feature for the AMD platform - Expose pin fractional frequency offset value over new DPLL generic netlink attribute - Convert older drivers to platform remove callback returning void - Add support for PHY package MMD read/write New hardware / drivers: - Ethernet: - Octeon CN10K devices - Broadcom 5760X P7 - Qualcomm SM8550 SoC - Texas Instrument DP83TG720S PHY - Bluetooth: - IMC Networks Bluetooth radio Removed: - WiFi: - libertas 16-bit PCMCIA support - Atmel at76c50x drivers - HostAP ISA/PCMCIA style 802.11b driver - zd1201 802.11b USB dongles - Orinoco ISA/PCMCIA 802.11b driver - Aviator/Raytheon driver - Planet WL3501 driver - RNDIS USB 802.11b driver Driver updates: - Ethernet high-speed NICs: - Intel (100G, ice, idpf): - allow one by one port representors creation and removal - add temperature and clock information reporting - add get/set for ethtool's header split ringparam - add again FW logging - adds support switchdev hardware packet mirroring - iavf: implement symmetric-xor RSS hash - igc: add support for concurrent physical and free-running timers - i40e: increase the allowable descriptors - nVidia/Mellanox: - Preparation for Socket-Direct multi-dev netdev. That will allow in future releases combining multiple PFs devices attached to different NUMA nodes under the same netdev - Broadcom (bnxt): - TX completion handling improvements - add basic ntuple filter support - reduce MSIX vectors usage for MQPRIO offload - add VXLAN support, USO offload and TX coalesce completion for P7 - Marvell Octeon EP: - xmit-more support - add PF-VF mailbox support and use it for FW notifications for VFs - Wangxun (ngbe/txgbe): - implement ethtool functions to operate pause param, ring param, coalesce channel number and msglevel - Netronome/Corigine (nfp): - add flow-steering support - support UDP segmentation offload - Ethernet NICs embedded, slower, virtual: - Xilinx AXI: remove duplicate DMA code adopting the dma engine driver - stmmac: add support for HW-accelerated VLAN stripping - TI AM654x sw: add mqprio, frame preemption & coalescing - gve: add support for non-4k page sizes. - virtio-net: support dynamic coalescing moderation - nVidia/Mellanox Ethernet datacenter switches: - allow firmware upgrade without a reboot - more flexible support for bridge flooding via the compressed FID flooding mode - Ethernet embedded switches: - Microchip: - fine-tune flow control and speed configurations in KSZ8xxx - KSZ88X3: enable setting rmii reference - Renesas: - add jumbo frames support - Marvell: - 88E6xxx: add "eth-mac" and "rmon" stats support - Ethernet PHYs: - aquantia: add firmware load support - at803x: refactor the driver to simplify adding support for more chip variants - NXP C45 TJA11xx: Add MACsec offload support - Wifi: - MediaTek (mt76): - NVMEM EEPROM improvements - mt7996 Extremely High Throughput (EHT) improvements - mt7996 Wireless Ethernet Dispatcher (WED) support - mt7996 36-bit DMA support - Qualcomm (ath12k): - support for a single MSI vector - WCN7850: support AP mode - Intel (iwlwifi): - new debugfs file fw_dbg_clear - allow concurrent P2P operation on DFS channels - Bluetooth: - QCA2066: support HFP offload - ISO: more broadcast-related improvements - NXP: better recovery in case receiver/transmitter get out of sync" * tag 'net-next-6.8' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1714 commits) lan78xx: remove redundant statement in lan78xx_get_eee lan743x: remove redundant statement in lan743x_ethtool_get_eee bnxt_en: Fix RCU locking for ntuple filters in bnxt_rx_flow_steer() bnxt_en: Fix RCU locking for ntuple filters in bnxt_srxclsrldel() bnxt_en: Remove unneeded variable in bnxt_hwrm_clear_vnic_filter() tcp: Revert no longer abort SYN_SENT when receiving some ICMP Revert "mlx5 updates 2023-12-20" Revert "net: stmmac: Enable Per DMA Channel interrupt" ipvlan: Remove usage of the deprecated ida_simple_xx() API ipvlan: Fix a typo in a comment net/sched: Remove ipt action tests net: stmmac: Use interrupt mode INTM=1 for per channel irq net: stmmac: Add support for TX/RX channel interrupt net: stmmac: Make MSI interrupt routine generic dt-bindings: net: snps,dwmac: per channel irq net: phy: at803x: make read_status more generic net: phy: at803x: add support for cdt cross short test for qca808x net: phy: at803x: refactor qca808x cable test get status function net: phy: at803x: generalize cdt fault length function net: ethernet: cortina: Drop TSO support ...
Diffstat (limited to 'drivers/net/wireless/intersil/orinoco/orinoco_usb.c')
-rw-r--r--drivers/net/wireless/intersil/orinoco/orinoco_usb.c1787
1 files changed, 0 insertions, 1787 deletions
diff --git a/drivers/net/wireless/intersil/orinoco/orinoco_usb.c b/drivers/net/wireless/intersil/orinoco/orinoco_usb.c
deleted file mode 100644
index 866e0230df25..000000000000
--- a/drivers/net/wireless/intersil/orinoco/orinoco_usb.c
+++ /dev/null
@@ -1,1787 +0,0 @@
-/*
- * USB Orinoco driver
- *
- * Copyright (c) 2003 Manuel Estrada Sainz
- *
- * The contents of this file are subject to the Mozilla Public License
- * Version 1.1 (the "License"); you may not use this file except in
- * compliance with the License. You may obtain a copy of the License
- * at http://www.mozilla.org/MPL/
- *
- * Software distributed under the License is distributed on an "AS IS"
- * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
- * the License for the specific language governing rights and
- * limitations under the License.
- *
- * Alternatively, the contents of this file may be used under the
- * terms of the GNU General Public License version 2 (the "GPL"), in
- * which case the provisions of the GPL are applicable instead of the
- * above. If you wish to allow the use of your version of this file
- * only under the terms of the GPL and not to allow others to use your
- * version of this file under the MPL, indicate your decision by
- * deleting the provisions above and replace them with the notice and
- * other provisions required by the GPL. If you do not delete the
- * provisions above, a recipient may use your version of this file
- * under either the MPL or the GPL.
- *
- * Queueing code based on linux-wlan-ng 0.2.1-pre5
- *
- * Copyright (C) 1999 AbsoluteValue Systems, Inc. All Rights Reserved.
- *
- * The license is the same as above.
- *
- * Initialy based on USB Skeleton driver - 0.7
- *
- * Copyright (c) 2001 Greg Kroah-Hartman (greg@kroah.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * NOTE: The original USB Skeleton driver is GPL, but all that code is
- * gone so MPL/GPL applies.
- */
-
-#define DRIVER_NAME "orinoco_usb"
-#define PFX DRIVER_NAME ": "
-
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/sched.h>
-#include <linux/signal.h>
-#include <linux/errno.h>
-#include <linux/poll.h>
-#include <linux/slab.h>
-#include <linux/fcntl.h>
-#include <linux/spinlock.h>
-#include <linux/list.h>
-#include <linux/usb.h>
-#include <linux/timer.h>
-
-#include <linux/netdevice.h>
-#include <linux/if_arp.h>
-#include <linux/etherdevice.h>
-#include <linux/wireless.h>
-#include <linux/firmware.h>
-#include <linux/refcount.h>
-
-#include "mic.h"
-#include "orinoco.h"
-
-#ifndef URB_ASYNC_UNLINK
-#define URB_ASYNC_UNLINK 0
-#endif
-
-struct header_struct {
- /* 802.3 */
- u8 dest[ETH_ALEN];
- u8 src[ETH_ALEN];
- __be16 len;
- /* 802.2 */
- u8 dsap;
- u8 ssap;
- u8 ctrl;
- /* SNAP */
- u8 oui[3];
- __be16 ethertype;
-} __packed;
-
-struct ez_usb_fw {
- u16 size;
- const u8 *code;
-};
-
-static struct ez_usb_fw firmware = {
- .size = 0,
- .code = NULL,
-};
-
-/* Debugging macros */
-#undef err
-#define err(format, arg...) \
- do { printk(KERN_ERR PFX format "\n", ## arg); } while (0)
-
-MODULE_FIRMWARE("orinoco_ezusb_fw");
-
-/*
- * Under some conditions, the card gets stuck and stops paying attention
- * to the world (i.e. data communication stalls) until we do something to
- * it. Sending an INQ_TALLIES command seems to be enough and should be
- * harmless otherwise. This behaviour has been observed when using the
- * driver on a systemimager client during installation. In the past a
- * timer was used to send INQ_TALLIES commands when there was no other
- * activity, but it was troublesome and was removed.
- */
-
-#define USB_COMPAQ_VENDOR_ID 0x049f /* Compaq Computer Corp. */
-#define USB_COMPAQ_WL215_ID 0x001f /* Compaq WL215 USB Adapter */
-#define USB_COMPAQ_W200_ID 0x0076 /* Compaq W200 USB Adapter */
-#define USB_HP_WL215_ID 0x0082 /* Compaq WL215 USB Adapter */
-
-#define USB_MELCO_VENDOR_ID 0x0411
-#define USB_BUFFALO_L11_ID 0x0006 /* BUFFALO WLI-USB-L11 */
-#define USB_BUFFALO_L11G_WR_ID 0x000B /* BUFFALO WLI-USB-L11G-WR */
-#define USB_BUFFALO_L11G_ID 0x000D /* BUFFALO WLI-USB-L11G */
-
-#define USB_LUCENT_VENDOR_ID 0x047E /* Lucent Technologies */
-#define USB_LUCENT_ORINOCO_ID 0x0300 /* Lucent/Agere Orinoco USB Client */
-
-#define USB_AVAYA8_VENDOR_ID 0x0D98
-#define USB_AVAYAE_VENDOR_ID 0x0D9E
-#define USB_AVAYA_WIRELESS_ID 0x0300 /* Avaya USB Wireless Card */
-
-#define USB_AGERE_VENDOR_ID 0x0D4E /* Agere Systems */
-#define USB_AGERE_MODEL0801_ID 0x1000 /* USB Wireless Card Model 0801 */
-#define USB_AGERE_MODEL0802_ID 0x1001 /* USB Wireless Card Model 0802 */
-#define USB_AGERE_REBRANDED_ID 0x047A /* USB WLAN Card */
-
-#define USB_ELSA_VENDOR_ID 0x05CC
-#define USB_ELSA_AIRLANCER_ID 0x3100 /* ELSA AirLancer USB-11 */
-
-#define USB_LEGEND_VENDOR_ID 0x0E7C
-#define USB_LEGEND_JOYNET_ID 0x0300 /* Joynet USB WLAN Card */
-
-#define USB_SAMSUNG_VENDOR_ID 0x04E8
-#define USB_SAMSUNG_SEW2001U1_ID 0x5002 /* Samsung SEW-2001u Card */
-#define USB_SAMSUNG_SEW2001U2_ID 0x5B11 /* Samsung SEW-2001u Card */
-#define USB_SAMSUNG_SEW2003U_ID 0x7011 /* Samsung SEW-2003U Card */
-
-#define USB_IGATE_VENDOR_ID 0x0681
-#define USB_IGATE_IGATE_11M_ID 0x0012 /* I-GATE 11M USB Card */
-
-#define USB_FUJITSU_VENDOR_ID 0x0BF8
-#define USB_FUJITSU_E1100_ID 0x1002 /* connect2AIR WLAN E-1100 USB */
-
-#define USB_2WIRE_VENDOR_ID 0x1630
-#define USB_2WIRE_WIRELESS_ID 0xff81 /* 2Wire USB Wireless adapter */
-
-
-#define EZUSB_REQUEST_FW_TRANS 0xA0
-#define EZUSB_REQUEST_TRIGGER 0xAA
-#define EZUSB_REQUEST_TRIG_AC 0xAC
-#define EZUSB_CPUCS_REG 0x7F92
-
-#define EZUSB_RID_TX 0x0700
-#define EZUSB_RID_RX 0x0701
-#define EZUSB_RID_INIT1 0x0702
-#define EZUSB_RID_ACK 0x0710
-#define EZUSB_RID_READ_PDA 0x0800
-#define EZUSB_RID_PROG_INIT 0x0852
-#define EZUSB_RID_PROG_SET_ADDR 0x0853
-#define EZUSB_RID_PROG_BYTES 0x0854
-#define EZUSB_RID_PROG_END 0x0855
-#define EZUSB_RID_DOCMD 0x0860
-
-/* Recognize info frames */
-#define EZUSB_IS_INFO(id) ((id >= 0xF000) && (id <= 0xF2FF))
-
-#define EZUSB_MAGIC 0x0210
-
-#define EZUSB_FRAME_DATA 1
-#define EZUSB_FRAME_CONTROL 2
-
-#define DEF_TIMEOUT (3 * HZ)
-
-#define BULK_BUF_SIZE 2048
-
-#define MAX_DL_SIZE (BULK_BUF_SIZE - sizeof(struct ezusb_packet))
-
-#define FW_BUF_SIZE 64
-#define FW_VAR_OFFSET_PTR 0x359
-#define FW_VAR_VALUE 0
-#define FW_HOLE_START 0x100
-#define FW_HOLE_END 0x300
-
-struct ezusb_packet {
- __le16 magic; /* 0x0210 */
- u8 req_reply_count;
- u8 ans_reply_count;
- __le16 frame_type; /* 0x01 for data frames, 0x02 otherwise */
- __le16 size; /* transport size */
- __le16 crc; /* CRC up to here */
- __le16 hermes_len;
- __le16 hermes_rid;
- u8 data[];
-} __packed;
-
-/* Table of devices that work or may work with this driver */
-static const struct usb_device_id ezusb_table[] = {
- {USB_DEVICE(USB_COMPAQ_VENDOR_ID, USB_COMPAQ_WL215_ID)},
- {USB_DEVICE(USB_COMPAQ_VENDOR_ID, USB_HP_WL215_ID)},
- {USB_DEVICE(USB_COMPAQ_VENDOR_ID, USB_COMPAQ_W200_ID)},
- {USB_DEVICE(USB_MELCO_VENDOR_ID, USB_BUFFALO_L11_ID)},
- {USB_DEVICE(USB_MELCO_VENDOR_ID, USB_BUFFALO_L11G_WR_ID)},
- {USB_DEVICE(USB_MELCO_VENDOR_ID, USB_BUFFALO_L11G_ID)},
- {USB_DEVICE(USB_LUCENT_VENDOR_ID, USB_LUCENT_ORINOCO_ID)},
- {USB_DEVICE(USB_AVAYA8_VENDOR_ID, USB_AVAYA_WIRELESS_ID)},
- {USB_DEVICE(USB_AVAYAE_VENDOR_ID, USB_AVAYA_WIRELESS_ID)},
- {USB_DEVICE(USB_AGERE_VENDOR_ID, USB_AGERE_MODEL0801_ID)},
- {USB_DEVICE(USB_AGERE_VENDOR_ID, USB_AGERE_MODEL0802_ID)},
- {USB_DEVICE(USB_ELSA_VENDOR_ID, USB_ELSA_AIRLANCER_ID)},
- {USB_DEVICE(USB_LEGEND_VENDOR_ID, USB_LEGEND_JOYNET_ID)},
- {USB_DEVICE_VER(USB_SAMSUNG_VENDOR_ID, USB_SAMSUNG_SEW2001U1_ID,
- 0, 0)},
- {USB_DEVICE(USB_SAMSUNG_VENDOR_ID, USB_SAMSUNG_SEW2001U2_ID)},
- {USB_DEVICE(USB_SAMSUNG_VENDOR_ID, USB_SAMSUNG_SEW2003U_ID)},
- {USB_DEVICE(USB_IGATE_VENDOR_ID, USB_IGATE_IGATE_11M_ID)},
- {USB_DEVICE(USB_FUJITSU_VENDOR_ID, USB_FUJITSU_E1100_ID)},
- {USB_DEVICE(USB_2WIRE_VENDOR_ID, USB_2WIRE_WIRELESS_ID)},
- {USB_DEVICE(USB_AGERE_VENDOR_ID, USB_AGERE_REBRANDED_ID)},
- {} /* Terminating entry */
-};
-
-MODULE_DEVICE_TABLE(usb, ezusb_table);
-
-/* Structure to hold all of our device specific stuff */
-struct ezusb_priv {
- struct usb_device *udev;
- struct net_device *dev;
- struct mutex mtx;
- spinlock_t req_lock;
- struct list_head req_pending;
- struct list_head req_active;
- spinlock_t reply_count_lock;
- u16 hermes_reg_fake[0x40];
- u8 *bap_buf;
- struct urb *read_urb;
- int read_pipe;
- int write_pipe;
- u8 reply_count;
-};
-
-enum ezusb_state {
- EZUSB_CTX_START,
- EZUSB_CTX_QUEUED,
- EZUSB_CTX_REQ_SUBMITTED,
- EZUSB_CTX_REQ_COMPLETE,
- EZUSB_CTX_RESP_RECEIVED,
- EZUSB_CTX_REQ_TIMEOUT,
- EZUSB_CTX_REQ_FAILED,
- EZUSB_CTX_RESP_TIMEOUT,
- EZUSB_CTX_REQSUBMIT_FAIL,
- EZUSB_CTX_COMPLETE,
-};
-
-struct request_context {
- struct list_head list;
- refcount_t refcount;
- struct completion done; /* Signals that CTX is dead */
- int killed;
- struct urb *outurb; /* OUT for req pkt */
- struct ezusb_priv *upriv;
- struct ezusb_packet *buf;
- int buf_length;
- struct timer_list timer; /* Timeout handling */
- enum ezusb_state state; /* Current state */
- /* the RID that we will wait for */
- u16 out_rid;
- u16 in_rid;
-};
-
-
-/* Forward declarations */
-static void ezusb_ctx_complete(struct request_context *ctx);
-static void ezusb_req_queue_run(struct ezusb_priv *upriv);
-static void ezusb_bulk_in_callback(struct urb *urb);
-
-static inline u8 ezusb_reply_inc(u8 count)
-{
- if (count < 0x7F)
- return count + 1;
- else
- return 1;
-}
-
-static void ezusb_request_context_put(struct request_context *ctx)
-{
- if (!refcount_dec_and_test(&ctx->refcount))
- return;
-
- WARN_ON(!ctx->done.done);
- BUG_ON(ctx->outurb->status == -EINPROGRESS);
- BUG_ON(timer_pending(&ctx->timer));
- usb_free_urb(ctx->outurb);
- kfree(ctx->buf);
- kfree(ctx);
-}
-
-static inline void ezusb_mod_timer(struct ezusb_priv *upriv,
- struct timer_list *timer,
- unsigned long expire)
-{
- if (!upriv->udev)
- return;
- mod_timer(timer, expire);
-}
-
-static void ezusb_request_timerfn(struct timer_list *t)
-{
- struct request_context *ctx = from_timer(ctx, t, timer);
-
- ctx->outurb->transfer_flags |= URB_ASYNC_UNLINK;
- if (usb_unlink_urb(ctx->outurb) == -EINPROGRESS) {
- ctx->state = EZUSB_CTX_REQ_TIMEOUT;
- } else {
- ctx->state = EZUSB_CTX_RESP_TIMEOUT;
- dev_dbg(&ctx->outurb->dev->dev, "couldn't unlink\n");
- refcount_inc(&ctx->refcount);
- ctx->killed = 1;
- ezusb_ctx_complete(ctx);
- ezusb_request_context_put(ctx);
- }
-};
-
-static struct request_context *ezusb_alloc_ctx(struct ezusb_priv *upriv,
- u16 out_rid, u16 in_rid)
-{
- struct request_context *ctx;
-
- ctx = kzalloc(sizeof(*ctx), GFP_ATOMIC);
- if (!ctx)
- return NULL;
-
- ctx->buf = kmalloc(BULK_BUF_SIZE, GFP_ATOMIC);
- if (!ctx->buf) {
- kfree(ctx);
- return NULL;
- }
- ctx->outurb = usb_alloc_urb(0, GFP_ATOMIC);
- if (!ctx->outurb) {
- kfree(ctx->buf);
- kfree(ctx);
- return NULL;
- }
-
- ctx->upriv = upriv;
- ctx->state = EZUSB_CTX_START;
- ctx->out_rid = out_rid;
- ctx->in_rid = in_rid;
-
- refcount_set(&ctx->refcount, 1);
- init_completion(&ctx->done);
-
- timer_setup(&ctx->timer, ezusb_request_timerfn, 0);
- return ctx;
-}
-
-static void ezusb_ctx_complete(struct request_context *ctx)
-{
- struct ezusb_priv *upriv = ctx->upriv;
- unsigned long flags;
-
- spin_lock_irqsave(&upriv->req_lock, flags);
-
- list_del_init(&ctx->list);
- if (upriv->udev) {
- spin_unlock_irqrestore(&upriv->req_lock, flags);
- ezusb_req_queue_run(upriv);
- spin_lock_irqsave(&upriv->req_lock, flags);
- }
-
- switch (ctx->state) {
- case EZUSB_CTX_COMPLETE:
- case EZUSB_CTX_REQSUBMIT_FAIL:
- case EZUSB_CTX_REQ_FAILED:
- case EZUSB_CTX_REQ_TIMEOUT:
- case EZUSB_CTX_RESP_TIMEOUT:
- spin_unlock_irqrestore(&upriv->req_lock, flags);
-
- if ((ctx->out_rid == EZUSB_RID_TX) && upriv->dev) {
- struct net_device *dev = upriv->dev;
- struct net_device_stats *stats = &dev->stats;
-
- if (ctx->state != EZUSB_CTX_COMPLETE)
- stats->tx_errors++;
- else
- stats->tx_packets++;
-
- netif_wake_queue(dev);
- }
- complete_all(&ctx->done);
- ezusb_request_context_put(ctx);
- break;
-
- default:
- spin_unlock_irqrestore(&upriv->req_lock, flags);
- if (!upriv->udev) {
- /* This is normal, as all request contexts get flushed
- * when the device is disconnected */
- err("Called, CTX not terminating, but device gone");
- complete_all(&ctx->done);
- ezusb_request_context_put(ctx);
- break;
- }
-
- err("Called, CTX not in terminating state.");
- /* Things are really bad if this happens. Just leak
- * the CTX because it may still be linked to the
- * queue or the OUT urb may still be active.
- * Just leaking at least prevents an Oops or Panic.
- */
- break;
- }
-}
-
-/*
- * ezusb_req_queue_run:
- * Description:
- * Note: Only one active CTX at any one time, because there's no
- * other (reliable) way to match the response URB to the correct
- * CTX.
- */
-static void ezusb_req_queue_run(struct ezusb_priv *upriv)
-{
- unsigned long flags;
- struct request_context *ctx;
- int result;
-
- spin_lock_irqsave(&upriv->req_lock, flags);
-
- if (!list_empty(&upriv->req_active))
- goto unlock;
-
- if (list_empty(&upriv->req_pending))
- goto unlock;
-
- ctx =
- list_entry(upriv->req_pending.next, struct request_context,
- list);
-
- if (!ctx->upriv->udev)
- goto unlock;
-
- /* We need to split this off to avoid a race condition */
- list_move_tail(&ctx->list, &upriv->req_active);
-
- if (ctx->state == EZUSB_CTX_QUEUED) {
- refcount_inc(&ctx->refcount);
- result = usb_submit_urb(ctx->outurb, GFP_ATOMIC);
- if (result) {
- ctx->state = EZUSB_CTX_REQSUBMIT_FAIL;
-
- spin_unlock_irqrestore(&upriv->req_lock, flags);
-
- err("Fatal, failed to submit command urb."
- " error=%d\n", result);
-
- ezusb_ctx_complete(ctx);
- ezusb_request_context_put(ctx);
- goto done;
- }
-
- ctx->state = EZUSB_CTX_REQ_SUBMITTED;
- ezusb_mod_timer(ctx->upriv, &ctx->timer,
- jiffies + DEF_TIMEOUT);
- }
-
- unlock:
- spin_unlock_irqrestore(&upriv->req_lock, flags);
-
- done:
- return;
-}
-
-static void ezusb_req_enqueue_run(struct ezusb_priv *upriv,
- struct request_context *ctx)
-{
- unsigned long flags;
-
- spin_lock_irqsave(&upriv->req_lock, flags);
-
- if (!ctx->upriv->udev) {
- spin_unlock_irqrestore(&upriv->req_lock, flags);
- goto done;
- }
- refcount_inc(&ctx->refcount);
- list_add_tail(&ctx->list, &upriv->req_pending);
- spin_unlock_irqrestore(&upriv->req_lock, flags);
-
- ctx->state = EZUSB_CTX_QUEUED;
- ezusb_req_queue_run(upriv);
-
- done:
- return;
-}
-
-static void ezusb_request_out_callback(struct urb *urb)
-{
- unsigned long flags;
- enum ezusb_state state;
- struct request_context *ctx = urb->context;
- struct ezusb_priv *upriv = ctx->upriv;
-
- spin_lock_irqsave(&upriv->req_lock, flags);
-
- del_timer(&ctx->timer);
-
- if (ctx->killed) {
- spin_unlock_irqrestore(&upriv->req_lock, flags);
- pr_warn("interrupt called with dead ctx\n");
- goto out;
- }
-
- state = ctx->state;
-
- if (urb->status == 0) {
- switch (state) {
- case EZUSB_CTX_REQ_SUBMITTED:
- if (ctx->in_rid) {
- ctx->state = EZUSB_CTX_REQ_COMPLETE;
- /* reply URB still pending */
- ezusb_mod_timer(upriv, &ctx->timer,
- jiffies + DEF_TIMEOUT);
- spin_unlock_irqrestore(&upriv->req_lock,
- flags);
- break;
- }
- fallthrough;
- case EZUSB_CTX_RESP_RECEIVED:
- /* IN already received before this OUT-ACK */
- ctx->state = EZUSB_CTX_COMPLETE;
- spin_unlock_irqrestore(&upriv->req_lock, flags);
- ezusb_ctx_complete(ctx);
- break;
-
- default:
- spin_unlock_irqrestore(&upriv->req_lock, flags);
- err("Unexpected state(0x%x, %d) in OUT URB",
- state, urb->status);
- break;
- }
- } else {
- /* If someone cancels the OUT URB then its status
- * should be either -ECONNRESET or -ENOENT.
- */
- switch (state) {
- case EZUSB_CTX_REQ_SUBMITTED:
- case EZUSB_CTX_RESP_RECEIVED:
- ctx->state = EZUSB_CTX_REQ_FAILED;
- fallthrough;
-
- case EZUSB_CTX_REQ_FAILED:
- case EZUSB_CTX_REQ_TIMEOUT:
- spin_unlock_irqrestore(&upriv->req_lock, flags);
-
- ezusb_ctx_complete(ctx);
- break;
-
- default:
- spin_unlock_irqrestore(&upriv->req_lock, flags);
-
- err("Unexpected state(0x%x, %d) in OUT URB",
- state, urb->status);
- break;
- }
- }
- out:
- ezusb_request_context_put(ctx);
-}
-
-static void ezusb_request_in_callback(struct ezusb_priv *upriv,
- struct urb *urb)
-{
- struct ezusb_packet *ans = urb->transfer_buffer;
- struct request_context *ctx = NULL;
- enum ezusb_state state;
- unsigned long flags;
-
- /* Find the CTX on the active queue that requested this URB */
- spin_lock_irqsave(&upriv->req_lock, flags);
- if (upriv->udev) {
- struct list_head *item;
-
- list_for_each(item, &upriv->req_active) {
- struct request_context *c;
- int reply_count;
-
- c = list_entry(item, struct request_context, list);
- reply_count =
- ezusb_reply_inc(c->buf->req_reply_count);
- if ((ans->ans_reply_count == reply_count)
- && (le16_to_cpu(ans->hermes_rid) == c->in_rid)) {
- ctx = c;
- break;
- }
- netdev_dbg(upriv->dev, "Skipped (0x%x/0x%x) (%d/%d)\n",
- le16_to_cpu(ans->hermes_rid), c->in_rid,
- ans->ans_reply_count, reply_count);
- }
- }
-
- if (ctx == NULL) {
- spin_unlock_irqrestore(&upriv->req_lock, flags);
- err("%s: got unexpected RID: 0x%04X", __func__,
- le16_to_cpu(ans->hermes_rid));
- ezusb_req_queue_run(upriv);
- return;
- }
-
- /* The data we want is in the in buffer, exchange */
- urb->transfer_buffer = ctx->buf;
- ctx->buf = (void *) ans;
- ctx->buf_length = urb->actual_length;
-
- state = ctx->state;
- switch (state) {
- case EZUSB_CTX_REQ_SUBMITTED:
- /* We have received our response URB before
- * our request has been acknowledged. Do NOT
- * destroy our CTX yet, because our OUT URB
- * is still alive ...
- */
- ctx->state = EZUSB_CTX_RESP_RECEIVED;
- spin_unlock_irqrestore(&upriv->req_lock, flags);
-
- /* Let the machine continue running. */
- break;
-
- case EZUSB_CTX_REQ_COMPLETE:
- /* This is the usual path: our request
- * has already been acknowledged, and
- * we have now received the reply.
- */
- ctx->state = EZUSB_CTX_COMPLETE;
-
- /* Stop the intimer */
- del_timer(&ctx->timer);
- spin_unlock_irqrestore(&upriv->req_lock, flags);
-
- /* Call the completion handler */
- ezusb_ctx_complete(ctx);
- break;
-
- default:
- spin_unlock_irqrestore(&upriv->req_lock, flags);
-
- pr_warn("Matched IN URB, unexpected context state(0x%x)\n",
- state);
- /* Throw this CTX away and try submitting another */
- del_timer(&ctx->timer);
- ctx->outurb->transfer_flags |= URB_ASYNC_UNLINK;
- usb_unlink_urb(ctx->outurb);
- ezusb_req_queue_run(upriv);
- break;
- } /* switch */
-}
-
-typedef void (*ezusb_ctx_wait)(struct ezusb_priv *, struct request_context *);
-
-static void ezusb_req_ctx_wait_compl(struct ezusb_priv *upriv,
- struct request_context *ctx)
-{
- switch (ctx->state) {
- case EZUSB_CTX_QUEUED:
- case EZUSB_CTX_REQ_SUBMITTED:
- case EZUSB_CTX_REQ_COMPLETE:
- case EZUSB_CTX_RESP_RECEIVED:
- wait_for_completion(&ctx->done);
- break;
- default:
- /* Done or failed - nothing to wait for */
- break;
- }
-}
-
-static void ezusb_req_ctx_wait_poll(struct ezusb_priv *upriv,
- struct request_context *ctx)
-{
- int msecs;
-
- switch (ctx->state) {
- case EZUSB_CTX_QUEUED:
- case EZUSB_CTX_REQ_SUBMITTED:
- case EZUSB_CTX_REQ_COMPLETE:
- case EZUSB_CTX_RESP_RECEIVED:
- /* If we get called from a timer or with our lock acquired, then
- * we can't wait for the completion and have to poll. This won't
- * happen if the USB controller completes the URB requests in
- * BH.
- */
- msecs = DEF_TIMEOUT * (1000 / HZ);
-
- while (!try_wait_for_completion(&ctx->done) && msecs--)
- udelay(1000);
- break;
- default:
- /* Done or failed - nothing to wait for */
- break;
- }
-}
-
-static void ezusb_req_ctx_wait_skip(struct ezusb_priv *upriv,
- struct request_context *ctx)
-{
- WARN(1, "Shouldn't be invoked for in_rid\n");
-}
-
-static inline u16 build_crc(struct ezusb_packet *data)
-{
- u16 crc = 0;
- u8 *bytes = (u8 *)data;
- int i;
-
- for (i = 0; i < 8; i++)
- crc = (crc << 1) + bytes[i];
-
- return crc;
-}
-
-/*
- * ezusb_fill_req:
- *
- * if data == NULL and length > 0 the data is assumed to be already in
- * the target buffer and only the header is filled.
- *
- */
-static int ezusb_fill_req(struct ezusb_packet *req, u16 length, u16 rid,
- const void *data, u16 frame_type, u8 reply_count)
-{
- int total_size = sizeof(*req) + length;
-
- BUG_ON(total_size > BULK_BUF_SIZE);
-
- req->magic = cpu_to_le16(EZUSB_MAGIC);
- req->req_reply_count = reply_count;
- req->ans_reply_count = 0;
- req->frame_type = cpu_to_le16(frame_type);
- req->size = cpu_to_le16(length + 4);
- req->crc = cpu_to_le16(build_crc(req));
- req->hermes_len = cpu_to_le16(HERMES_BYTES_TO_RECLEN(length));
- req->hermes_rid = cpu_to_le16(rid);
- if (data)
- memcpy(req->data, data, length);
- return total_size;
-}
-
-static int ezusb_submit_in_urb(struct ezusb_priv *upriv)
-{
- int retval = 0;
- void *cur_buf = upriv->read_urb->transfer_buffer;
-
- if (upriv->read_urb->status == -EINPROGRESS) {
- netdev_dbg(upriv->dev, "urb busy, not resubmiting\n");
- retval = -EBUSY;
- goto exit;
- }
- usb_fill_bulk_urb(upriv->read_urb, upriv->udev, upriv->read_pipe,
- cur_buf, BULK_BUF_SIZE,
- ezusb_bulk_in_callback, upriv);
- upriv->read_urb->transfer_flags = 0;
- retval = usb_submit_urb(upriv->read_urb, GFP_ATOMIC);
- if (retval)
- err("%s submit failed %d", __func__, retval);
-
- exit:
- return retval;
-}
-
-static inline int ezusb_8051_cpucs(struct ezusb_priv *upriv, int reset)
-{
- int ret;
- u8 *res_val = NULL;
-
- if (!upriv->udev) {
- err("%s: !upriv->udev", __func__);
- return -EFAULT;
- }
-
- res_val = kmalloc(sizeof(*res_val), GFP_KERNEL);
-
- if (!res_val)
- return -ENOMEM;
-
- *res_val = reset; /* avoid argument promotion */
-
- ret = usb_control_msg(upriv->udev,
- usb_sndctrlpipe(upriv->udev, 0),
- EZUSB_REQUEST_FW_TRANS,
- USB_TYPE_VENDOR | USB_RECIP_DEVICE |
- USB_DIR_OUT, EZUSB_CPUCS_REG, 0, res_val,
- sizeof(*res_val), DEF_TIMEOUT);
-
- kfree(res_val);
-
- return ret;
-}
-
-static int ezusb_firmware_download(struct ezusb_priv *upriv,
- struct ez_usb_fw *fw)
-{
- u8 *fw_buffer;
- int retval, addr;
- int variant_offset;
-
- fw_buffer = kmalloc(FW_BUF_SIZE, GFP_KERNEL);
- if (!fw_buffer) {
- printk(KERN_ERR PFX "Out of memory for firmware buffer.\n");
- return -ENOMEM;
- }
- /*
- * This byte is 1 and should be replaced with 0. The offset is
- * 0x10AD in version 0.0.6. The byte in question should follow
- * the end of the code pointed to by the jump in the beginning
- * of the firmware. Also, it is read by code located at 0x358.
- */
- variant_offset = be16_to_cpup((__be16 *) &fw->code[FW_VAR_OFFSET_PTR]);
- if (variant_offset >= fw->size) {
- printk(KERN_ERR PFX "Invalid firmware variant offset: "
- "0x%04x\n", variant_offset);
- retval = -EINVAL;
- goto fail;
- }
-
- retval = ezusb_8051_cpucs(upriv, 1);
- if (retval < 0)
- goto fail;
- for (addr = 0; addr < fw->size; addr += FW_BUF_SIZE) {
- /* 0x100-0x300 should be left alone, it contains card
- * specific data, like USB enumeration information */
- if ((addr >= FW_HOLE_START) && (addr < FW_HOLE_END))
- continue;
-
- memcpy(fw_buffer, &fw->code[addr], FW_BUF_SIZE);
- if (variant_offset >= addr &&
- variant_offset < addr + FW_BUF_SIZE) {
- netdev_dbg(upriv->dev,
- "Patching card_variant byte at 0x%04X\n",
- variant_offset);
- fw_buffer[variant_offset - addr] = FW_VAR_VALUE;
- }
- retval = usb_control_msg(upriv->udev,
- usb_sndctrlpipe(upriv->udev, 0),
- EZUSB_REQUEST_FW_TRANS,
- USB_TYPE_VENDOR | USB_RECIP_DEVICE
- | USB_DIR_OUT,
- addr, 0x0,
- fw_buffer, FW_BUF_SIZE,
- DEF_TIMEOUT);
-
- if (retval < 0)
- goto fail;
- }
- retval = ezusb_8051_cpucs(upriv, 0);
- if (retval < 0)
- goto fail;
-
- goto exit;
- fail:
- printk(KERN_ERR PFX "Firmware download failed, error %d\n",
- retval);
- exit:
- kfree(fw_buffer);
- return retval;
-}
-
-static int ezusb_access_ltv(struct ezusb_priv *upriv,
- struct request_context *ctx,
- u16 length, const void *data, u16 frame_type,
- void *ans_buff, unsigned ans_size, u16 *ans_length,
- ezusb_ctx_wait ezusb_ctx_wait_func)
-{
- int req_size;
- int retval = 0;
- enum ezusb_state state;
-
- if (!upriv->udev) {
- retval = -ENODEV;
- goto exit;
- }
-
- if (upriv->read_urb->status != -EINPROGRESS)
- err("%s: in urb not pending", __func__);
-
- /* protect upriv->reply_count, guarantee sequential numbers */
- spin_lock_bh(&upriv->reply_count_lock);
- req_size = ezusb_fill_req(ctx->buf, length, ctx->out_rid, data,
- frame_type, upriv->reply_count);
- usb_fill_bulk_urb(ctx->outurb, upriv->udev, upriv->write_pipe,
- ctx->buf, req_size,
- ezusb_request_out_callback, ctx);
-
- if (ctx->in_rid)
- upriv->reply_count = ezusb_reply_inc(upriv->reply_count);
-
- ezusb_req_enqueue_run(upriv, ctx);
-
- spin_unlock_bh(&upriv->reply_count_lock);
-
- if (ctx->in_rid)
- ezusb_ctx_wait_func(upriv, ctx);
-
- state = ctx->state;
- switch (state) {
- case EZUSB_CTX_COMPLETE:
- retval = ctx->outurb->status;
- break;
-
- case EZUSB_CTX_QUEUED:
- case EZUSB_CTX_REQ_SUBMITTED:
- if (!ctx->in_rid)
- break;
- fallthrough;
- default:
- err("%s: Unexpected context state %d", __func__,
- state);
- fallthrough;
- case EZUSB_CTX_REQ_TIMEOUT:
- case EZUSB_CTX_REQ_FAILED:
- case EZUSB_CTX_RESP_TIMEOUT:
- case EZUSB_CTX_REQSUBMIT_FAIL:
- printk(KERN_ERR PFX "Access failed, resetting (state %d,"
- " reply_count %d)\n", state, upriv->reply_count);
- upriv->reply_count = 0;
- if (state == EZUSB_CTX_REQ_TIMEOUT
- || state == EZUSB_CTX_RESP_TIMEOUT) {
- printk(KERN_ERR PFX "ctx timed out\n");
- retval = -ETIMEDOUT;
- } else {
- printk(KERN_ERR PFX "ctx failed\n");
- retval = -EFAULT;
- }
- goto exit;
- }
- if (ctx->in_rid) {
- struct ezusb_packet *ans = ctx->buf;
- unsigned exp_len;
-
- if (ans->hermes_len != 0)
- exp_len = le16_to_cpu(ans->hermes_len) * 2 + 12;
- else
- exp_len = 14;
-
- if (exp_len != ctx->buf_length) {
- err("%s: length mismatch for RID 0x%04x: "
- "expected %d, got %d", __func__,
- ctx->in_rid, exp_len, ctx->buf_length);
- retval = -EIO;
- goto exit;
- }
-
- if (ans_buff)
- memcpy(ans_buff, ans->data, min(exp_len, ans_size));
- if (ans_length)
- *ans_length = le16_to_cpu(ans->hermes_len);
- }
- exit:
- ezusb_request_context_put(ctx);
- return retval;
-}
-
-static int __ezusb_write_ltv(struct hermes *hw, int bap, u16 rid,
- u16 length, const void *data,
- ezusb_ctx_wait ezusb_ctx_wait_func)
-{
- struct ezusb_priv *upriv = hw->priv;
- u16 frame_type;
- struct request_context *ctx;
-
- if (length == 0)
- return -EINVAL;
-
- length = HERMES_RECLEN_TO_BYTES(length);
-
- /* On memory mapped devices HERMES_RID_CNFGROUPADDRESSES can be
- * set to be empty, but the USB bridge doesn't like it */
- if (length == 0)
- return 0;
-
- ctx = ezusb_alloc_ctx(upriv, rid, EZUSB_RID_ACK);
- if (!ctx)
- return -ENOMEM;
-
- if (rid == EZUSB_RID_TX)
- frame_type = EZUSB_FRAME_DATA;
- else
- frame_type = EZUSB_FRAME_CONTROL;
-
- return ezusb_access_ltv(upriv, ctx, length, data, frame_type,
- NULL, 0, NULL, ezusb_ctx_wait_func);
-}
-
-static int ezusb_write_ltv(struct hermes *hw, int bap, u16 rid,
- u16 length, const void *data)
-{
- return __ezusb_write_ltv(hw, bap, rid, length, data,
- ezusb_req_ctx_wait_poll);
-}
-
-static int __ezusb_read_ltv(struct hermes *hw, int bap, u16 rid,
- unsigned bufsize, u16 *length, void *buf,
- ezusb_ctx_wait ezusb_ctx_wait_func)
-
-{
- struct ezusb_priv *upriv = hw->priv;
- struct request_context *ctx;
-
- if (bufsize % 2)
- return -EINVAL;
-
- ctx = ezusb_alloc_ctx(upriv, rid, rid);
- if (!ctx)
- return -ENOMEM;
-
- return ezusb_access_ltv(upriv, ctx, 0, NULL, EZUSB_FRAME_CONTROL,
- buf, bufsize, length, ezusb_req_ctx_wait_poll);
-}
-
-static int ezusb_read_ltv(struct hermes *hw, int bap, u16 rid,
- unsigned bufsize, u16 *length, void *buf)
-{
- return __ezusb_read_ltv(hw, bap, rid, bufsize, length, buf,
- ezusb_req_ctx_wait_poll);
-}
-
-static int ezusb_read_ltv_preempt(struct hermes *hw, int bap, u16 rid,
- unsigned bufsize, u16 *length, void *buf)
-{
- return __ezusb_read_ltv(hw, bap, rid, bufsize, length, buf,
- ezusb_req_ctx_wait_compl);
-}
-
-static int ezusb_doicmd_wait(struct hermes *hw, u16 cmd, u16 parm0, u16 parm1,
- u16 parm2, struct hermes_response *resp)
-{
- WARN_ON_ONCE(1);
- return -EINVAL;
-}
-
-static int __ezusb_docmd_wait(struct hermes *hw, u16 cmd, u16 parm0,
- struct hermes_response *resp,
- ezusb_ctx_wait ezusb_ctx_wait_func)
-{
- struct ezusb_priv *upriv = hw->priv;
- struct request_context *ctx;
-
- __le16 data[4] = {
- cpu_to_le16(cmd),
- cpu_to_le16(parm0),
- 0,
- 0,
- };
- netdev_dbg(upriv->dev, "0x%04X, parm0 0x%04X\n", cmd, parm0);
- ctx = ezusb_alloc_ctx(upriv, EZUSB_RID_DOCMD, EZUSB_RID_ACK);
- if (!ctx)
- return -ENOMEM;
-
- return ezusb_access_ltv(upriv, ctx, sizeof(data), &data,
- EZUSB_FRAME_CONTROL, NULL, 0, NULL,
- ezusb_ctx_wait_func);
-}
-
-static int ezusb_docmd_wait(struct hermes *hw, u16 cmd, u16 parm0,
- struct hermes_response *resp)
-{
- return __ezusb_docmd_wait(hw, cmd, parm0, resp, ezusb_req_ctx_wait_poll);
-}
-
-static int ezusb_bap_pread(struct hermes *hw, int bap,
- void *buf, int len, u16 id, u16 offset)
-{
- struct ezusb_priv *upriv = hw->priv;
- struct ezusb_packet *ans = (void *) upriv->read_urb->transfer_buffer;
- int actual_length = upriv->read_urb->actual_length;
-
- if (id == EZUSB_RID_RX) {
- if ((sizeof(*ans) + offset + len) > actual_length) {
- printk(KERN_ERR PFX "BAP read beyond buffer end "
- "in rx frame\n");
- return -EINVAL;
- }
- memcpy(buf, ans->data + offset, len);
- return 0;
- }
-
- if (EZUSB_IS_INFO(id)) {
- /* Include 4 bytes for length/type */
- if ((sizeof(*ans) + offset + len - 4) > actual_length) {
- printk(KERN_ERR PFX "BAP read beyond buffer end "
- "in info frame\n");
- return -EFAULT;
- }
- memcpy(buf, ans->data + offset - 4, len);
- } else {
- printk(KERN_ERR PFX "Unexpected fid 0x%04x\n", id);
- return -EINVAL;
- }
-
- return 0;
-}
-
-static int ezusb_read_pda(struct hermes *hw, __le16 *pda,
- u32 pda_addr, u16 pda_len)
-{
- struct ezusb_priv *upriv = hw->priv;
- struct request_context *ctx;
- __le16 data[] = {
- cpu_to_le16(pda_addr & 0xffff),
- cpu_to_le16(pda_len - 4)
- };
- ctx = ezusb_alloc_ctx(upriv, EZUSB_RID_READ_PDA, EZUSB_RID_READ_PDA);
- if (!ctx)
- return -ENOMEM;
-
- /* wl_lkm does not include PDA size in the PDA area.
- * We will pad the information into pda, so other routines
- * don't have to be modified */
- pda[0] = cpu_to_le16(pda_len - 2);
- /* Includes CFG_PROD_DATA but not itself */
- pda[1] = cpu_to_le16(0x0800); /* CFG_PROD_DATA */
-
- return ezusb_access_ltv(upriv, ctx, sizeof(data), &data,
- EZUSB_FRAME_CONTROL, &pda[2], pda_len - 4,
- NULL, ezusb_req_ctx_wait_compl);
-}
-
-static int ezusb_program_init(struct hermes *hw, u32 entry_point)
-{
- struct ezusb_priv *upriv = hw->priv;
- struct request_context *ctx;
- __le32 data = cpu_to_le32(entry_point);
-
- ctx = ezusb_alloc_ctx(upriv, EZUSB_RID_PROG_INIT, EZUSB_RID_ACK);
- if (!ctx)
- return -ENOMEM;
-
- return ezusb_access_ltv(upriv, ctx, sizeof(data), &data,
- EZUSB_FRAME_CONTROL, NULL, 0, NULL,
- ezusb_req_ctx_wait_compl);
-}
-
-static int ezusb_program_end(struct hermes *hw)
-{
- struct ezusb_priv *upriv = hw->priv;
- struct request_context *ctx;
-
- ctx = ezusb_alloc_ctx(upriv, EZUSB_RID_PROG_END, EZUSB_RID_ACK);
- if (!ctx)
- return -ENOMEM;
-
- return ezusb_access_ltv(upriv, ctx, 0, NULL,
- EZUSB_FRAME_CONTROL, NULL, 0, NULL,
- ezusb_req_ctx_wait_compl);
-}
-
-static int ezusb_program_bytes(struct hermes *hw, const char *buf,
- u32 addr, u32 len)
-{
- struct ezusb_priv *upriv = hw->priv;
- struct request_context *ctx;
- __le32 data = cpu_to_le32(addr);
- int err;
-
- ctx = ezusb_alloc_ctx(upriv, EZUSB_RID_PROG_SET_ADDR, EZUSB_RID_ACK);
- if (!ctx)
- return -ENOMEM;
-
- err = ezusb_access_ltv(upriv, ctx, sizeof(data), &data,
- EZUSB_FRAME_CONTROL, NULL, 0, NULL,
- ezusb_req_ctx_wait_compl);
- if (err)
- return err;
-
- ctx = ezusb_alloc_ctx(upriv, EZUSB_RID_PROG_BYTES, EZUSB_RID_ACK);
- if (!ctx)
- return -ENOMEM;
-
- return ezusb_access_ltv(upriv, ctx, len, buf,
- EZUSB_FRAME_CONTROL, NULL, 0, NULL,
- ezusb_req_ctx_wait_compl);
-}
-
-static int ezusb_program(struct hermes *hw, const char *buf,
- u32 addr, u32 len)
-{
- u32 ch_addr;
- u32 ch_len;
- int err = 0;
-
- /* We can only send 2048 bytes out of the bulk xmit at a time,
- * so we have to split any programming into chunks of <2048
- * bytes. */
-
- ch_len = (len < MAX_DL_SIZE) ? len : MAX_DL_SIZE;
- ch_addr = addr;
-
- while (ch_addr < (addr + len)) {
- pr_debug("Programming subblock of length %d "
- "to address 0x%08x. Data @ %p\n",
- ch_len, ch_addr, &buf[ch_addr - addr]);
-
- err = ezusb_program_bytes(hw, &buf[ch_addr - addr],
- ch_addr, ch_len);
- if (err)
- break;
-
- ch_addr += ch_len;
- ch_len = ((addr + len - ch_addr) < MAX_DL_SIZE) ?
- (addr + len - ch_addr) : MAX_DL_SIZE;
- }
-
- return err;
-}
-
-static netdev_tx_t ezusb_xmit(struct sk_buff *skb, struct net_device *dev)
-{
- struct orinoco_private *priv = ndev_priv(dev);
- struct net_device_stats *stats = &dev->stats;
- struct ezusb_priv *upriv = priv->card;
- u8 mic[MICHAEL_MIC_LEN + 1];
- int err = 0;
- int tx_control;
- unsigned long flags;
- struct request_context *ctx;
- u8 *buf;
- int tx_size;
-
- if (!netif_running(dev)) {
- printk(KERN_ERR "%s: Tx on stopped device!\n",
- dev->name);
- return NETDEV_TX_BUSY;
- }
-
- if (netif_queue_stopped(dev)) {
- printk(KERN_DEBUG "%s: Tx while transmitter busy!\n",
- dev->name);
- return NETDEV_TX_BUSY;
- }
-
- if (orinoco_lock(priv, &flags) != 0) {
- printk(KERN_ERR
- "%s: ezusb_xmit() called while hw_unavailable\n",
- dev->name);
- return NETDEV_TX_BUSY;
- }
-
- if (!netif_carrier_ok(dev) ||
- (priv->iw_mode == NL80211_IFTYPE_MONITOR)) {
- /* Oops, the firmware hasn't established a connection,
- silently drop the packet (this seems to be the
- safest approach). */
- goto drop;
- }
-
- /* Check packet length */
- if (skb->len < ETH_HLEN)
- goto drop;
-
- tx_control = 0;
-
- err = orinoco_process_xmit_skb(skb, dev, priv, &tx_control,
- &mic[0]);
- if (err)
- goto drop;
-
- ctx = ezusb_alloc_ctx(upriv, EZUSB_RID_TX, 0);
- if (!ctx)
- goto drop;
-
- memset(ctx->buf, 0, BULK_BUF_SIZE);
- buf = ctx->buf->data;
-
- {
- __le16 *tx_cntl = (__le16 *)buf;
- *tx_cntl = cpu_to_le16(tx_control);
- buf += sizeof(*tx_cntl);
- }
-
- memcpy(buf, skb->data, skb->len);
- buf += skb->len;
-
- if (tx_control & HERMES_TXCTRL_MIC) {
- u8 *m = mic;
- /* Mic has been offset so it can be copied to an even
- * address. We're copying eveything anyway, so we
- * don't need to copy that first byte. */
- if (skb->len % 2)
- m++;
- memcpy(buf, m, MICHAEL_MIC_LEN);
- buf += MICHAEL_MIC_LEN;
- }
-
- /* Finally, we actually initiate the send */
- netif_stop_queue(dev);
-
- /* The card may behave better if we send evenly sized usb transfers */
- tx_size = ALIGN(buf - ctx->buf->data, 2);
-
- err = ezusb_access_ltv(upriv, ctx, tx_size, NULL,
- EZUSB_FRAME_DATA, NULL, 0, NULL,
- ezusb_req_ctx_wait_skip);
-
- if (err) {
- netif_start_queue(dev);
- if (net_ratelimit())
- printk(KERN_ERR "%s: Error %d transmitting packet\n",
- dev->name, err);
- goto busy;
- }
-
- netif_trans_update(dev);
- stats->tx_bytes += skb->len;
- goto ok;
-
- drop:
- stats->tx_errors++;
- stats->tx_dropped++;
-
- ok:
- orinoco_unlock(priv, &flags);
- dev_kfree_skb(skb);
- return NETDEV_TX_OK;
-
- busy:
- orinoco_unlock(priv, &flags);
- return NETDEV_TX_BUSY;
-}
-
-static int ezusb_allocate(struct hermes *hw, u16 size, u16 *fid)
-{
- *fid = EZUSB_RID_TX;
- return 0;
-}
-
-
-static int ezusb_hard_reset(struct orinoco_private *priv)
-{
- struct ezusb_priv *upriv = priv->card;
- int retval = ezusb_8051_cpucs(upriv, 1);
-
- if (retval < 0) {
- err("Failed to reset");
- return retval;
- }
-
- retval = ezusb_8051_cpucs(upriv, 0);
- if (retval < 0) {
- err("Failed to unreset");
- return retval;
- }
-
- netdev_dbg(upriv->dev, "sending control message\n");
- retval = usb_control_msg(upriv->udev,
- usb_sndctrlpipe(upriv->udev, 0),
- EZUSB_REQUEST_TRIGGER,
- USB_TYPE_VENDOR | USB_RECIP_DEVICE |
- USB_DIR_OUT, 0x0, 0x0, NULL, 0,
- DEF_TIMEOUT);
- if (retval < 0) {
- err("EZUSB_REQUEST_TRIGGER failed retval %d", retval);
- return retval;
- }
-#if 0
- dbg("Sending EZUSB_REQUEST_TRIG_AC");
- retval = usb_control_msg(upriv->udev,
- usb_sndctrlpipe(upriv->udev, 0),
- EZUSB_REQUEST_TRIG_AC,
- USB_TYPE_VENDOR | USB_RECIP_DEVICE |
- USB_DIR_OUT, 0x00FA, 0x0, NULL, 0,
- DEF_TIMEOUT);
- if (retval < 0) {
- err("EZUSB_REQUEST_TRIG_AC failed retval %d", retval);
- return retval;
- }
-#endif
-
- return 0;
-}
-
-
-static int ezusb_init(struct hermes *hw)
-{
- struct ezusb_priv *upriv = hw->priv;
- int retval;
-
- if (!upriv)
- return -EINVAL;
-
- upriv->reply_count = 0;
- /* Write the MAGIC number on the simulated registers to keep
- * orinoco.c happy */
- hermes_write_regn(hw, SWSUPPORT0, HERMES_MAGIC);
- hermes_write_regn(hw, RXFID, EZUSB_RID_RX);
-
- usb_kill_urb(upriv->read_urb);
- ezusb_submit_in_urb(upriv);
-
- retval = __ezusb_write_ltv(hw, 0, EZUSB_RID_INIT1,
- HERMES_BYTES_TO_RECLEN(2), "\x10\x00",
- ezusb_req_ctx_wait_compl);
- if (retval < 0) {
- printk(KERN_ERR PFX "EZUSB_RID_INIT1 error %d\n", retval);
- return retval;
- }
-
- retval = __ezusb_docmd_wait(hw, HERMES_CMD_INIT, 0, NULL,
- ezusb_req_ctx_wait_compl);
- if (retval < 0) {
- printk(KERN_ERR PFX "HERMES_CMD_INIT error %d\n", retval);
- return retval;
- }
-
- return 0;
-}
-
-static void ezusb_bulk_in_callback(struct urb *urb)
-{
- struct ezusb_priv *upriv = (struct ezusb_priv *) urb->context;
- struct ezusb_packet *ans = urb->transfer_buffer;
- u16 crc;
- u16 hermes_rid;
-
- if (upriv->udev == NULL)
- return;
-
- if (urb->status == -ETIMEDOUT) {
- /* When a device gets unplugged we get this every time
- * we resubmit, flooding the logs. Since we don't use
- * USB timeouts, it shouldn't happen any other time*/
- pr_warn("%s: urb timed out, not resubmitting\n", __func__);
- return;
- }
- if (urb->status == -ECONNABORTED) {
- pr_warn("%s: connection abort, resubmitting urb\n",
- __func__);
- goto resubmit;
- }
- if ((urb->status == -EILSEQ)
- || (urb->status == -ENOENT)
- || (urb->status == -ECONNRESET)) {
- netdev_dbg(upriv->dev, "status %d, not resubmiting\n",
- urb->status);
- return;
- }
- if (urb->status)
- netdev_dbg(upriv->dev, "status: %d length: %d\n",
- urb->status, urb->actual_length);
- if (urb->actual_length < sizeof(*ans)) {
- err("%s: short read, ignoring", __func__);
- goto resubmit;
- }
- crc = build_crc(ans);
- if (le16_to_cpu(ans->crc) != crc) {
- err("CRC error, ignoring packet");
- goto resubmit;
- }
-
- hermes_rid = le16_to_cpu(ans->hermes_rid);
- if ((hermes_rid != EZUSB_RID_RX) && !EZUSB_IS_INFO(hermes_rid)) {
- ezusb_request_in_callback(upriv, urb);
- } else if (upriv->dev) {
- struct net_device *dev = upriv->dev;
- struct orinoco_private *priv = ndev_priv(dev);
- struct hermes *hw = &priv->hw;
-
- if (hermes_rid == EZUSB_RID_RX) {
- __orinoco_ev_rx(dev, hw);
- } else {
- hermes_write_regn(hw, INFOFID,
- le16_to_cpu(ans->hermes_rid));
- __orinoco_ev_info(dev, hw);
- }
- }
-
- resubmit:
- if (upriv->udev)
- ezusb_submit_in_urb(upriv);
-}
-
-static inline void ezusb_delete(struct ezusb_priv *upriv)
-{
- struct list_head *item;
- struct list_head *tmp_item;
- unsigned long flags;
-
- BUG_ON(!upriv);
-
- mutex_lock(&upriv->mtx);
-
- upriv->udev = NULL; /* No timer will be rearmed from here */
-
- usb_kill_urb(upriv->read_urb);
-
- spin_lock_irqsave(&upriv->req_lock, flags);
- list_for_each_safe(item, tmp_item, &upriv->req_active) {
- struct request_context *ctx;
- int err;
-
- ctx = list_entry(item, struct request_context, list);
- refcount_inc(&ctx->refcount);
-
- ctx->outurb->transfer_flags |= URB_ASYNC_UNLINK;
- err = usb_unlink_urb(ctx->outurb);
-
- spin_unlock_irqrestore(&upriv->req_lock, flags);
- if (err == -EINPROGRESS)
- wait_for_completion(&ctx->done);
-
- del_timer_sync(&ctx->timer);
- /* FIXME: there is an slight chance for the irq handler to
- * be running */
- if (!list_empty(&ctx->list))
- ezusb_ctx_complete(ctx);
-
- ezusb_request_context_put(ctx);
- spin_lock_irqsave(&upriv->req_lock, flags);
- }
- spin_unlock_irqrestore(&upriv->req_lock, flags);
-
- list_for_each_safe(item, tmp_item, &upriv->req_pending)
- ezusb_ctx_complete(list_entry(item,
- struct request_context, list));
-
- if (upriv->read_urb && upriv->read_urb->status == -EINPROGRESS)
- printk(KERN_ERR PFX "Some URB in progress\n");
-
- mutex_unlock(&upriv->mtx);
-
- if (upriv->read_urb) {
- kfree(upriv->read_urb->transfer_buffer);
- usb_free_urb(upriv->read_urb);
- }
- kfree(upriv->bap_buf);
- if (upriv->dev) {
- struct orinoco_private *priv = ndev_priv(upriv->dev);
- orinoco_if_del(priv);
- wiphy_unregister(priv_to_wiphy(upriv));
- free_orinocodev(priv);
- }
-}
-
-static void ezusb_lock_irqsave(spinlock_t *lock,
- unsigned long *flags) __acquires(lock)
-{
- spin_lock_bh(lock);
-}
-
-static void ezusb_unlock_irqrestore(spinlock_t *lock,
- unsigned long *flags) __releases(lock)
-{
- spin_unlock_bh(lock);
-}
-
-static void ezusb_lock_irq(spinlock_t *lock) __acquires(lock)
-{
- spin_lock_bh(lock);
-}
-
-static void ezusb_unlock_irq(spinlock_t *lock) __releases(lock)
-{
- spin_unlock_bh(lock);
-}
-
-static const struct hermes_ops ezusb_ops = {
- .init = ezusb_init,
- .cmd_wait = ezusb_docmd_wait,
- .init_cmd_wait = ezusb_doicmd_wait,
- .allocate = ezusb_allocate,
- .read_ltv = ezusb_read_ltv,
- .read_ltv_pr = ezusb_read_ltv_preempt,
- .write_ltv = ezusb_write_ltv,
- .bap_pread = ezusb_bap_pread,
- .read_pda = ezusb_read_pda,
- .program_init = ezusb_program_init,
- .program_end = ezusb_program_end,
- .program = ezusb_program,
- .lock_irqsave = ezusb_lock_irqsave,
- .unlock_irqrestore = ezusb_unlock_irqrestore,
- .lock_irq = ezusb_lock_irq,
- .unlock_irq = ezusb_unlock_irq,
-};
-
-static const struct net_device_ops ezusb_netdev_ops = {
- .ndo_open = orinoco_open,
- .ndo_stop = orinoco_stop,
- .ndo_start_xmit = ezusb_xmit,
- .ndo_set_rx_mode = orinoco_set_multicast_list,
- .ndo_change_mtu = orinoco_change_mtu,
- .ndo_set_mac_address = eth_mac_addr,
- .ndo_validate_addr = eth_validate_addr,
- .ndo_tx_timeout = orinoco_tx_timeout,
-};
-
-static int ezusb_probe(struct usb_interface *interface,
- const struct usb_device_id *id)
-{
- struct usb_device *udev = interface_to_usbdev(interface);
- struct orinoco_private *priv;
- struct hermes *hw;
- struct ezusb_priv *upriv = NULL;
- struct usb_interface_descriptor *iface_desc;
- struct usb_endpoint_descriptor *ep;
- const struct firmware *fw_entry = NULL;
- int retval = 0;
- int i;
-
- priv = alloc_orinocodev(sizeof(*upriv), &udev->dev,
- ezusb_hard_reset, NULL);
- if (!priv) {
- err("Couldn't allocate orinocodev");
- retval = -ENOMEM;
- goto exit;
- }
-
- hw = &priv->hw;
-
- upriv = priv->card;
-
- mutex_init(&upriv->mtx);
- spin_lock_init(&upriv->reply_count_lock);
-
- spin_lock_init(&upriv->req_lock);
- INIT_LIST_HEAD(&upriv->req_pending);
- INIT_LIST_HEAD(&upriv->req_active);
-
- upriv->udev = udev;
-
- hw->iobase = (void __force __iomem *) &upriv->hermes_reg_fake;
- hw->reg_spacing = HERMES_16BIT_REGSPACING;
- hw->priv = upriv;
- hw->ops = &ezusb_ops;
-
- /* set up the endpoint information */
- /* check out the endpoints */
-
- iface_desc = &interface->cur_altsetting->desc;
- for (i = 0; i < iface_desc->bNumEndpoints; ++i) {
- ep = &interface->cur_altsetting->endpoint[i].desc;
-
- if (usb_endpoint_is_bulk_in(ep)) {
- /* we found a bulk in endpoint */
- if (upriv->read_urb != NULL) {
- pr_warn("Found a second bulk in ep, ignored\n");
- continue;
- }
-
- upriv->read_urb = usb_alloc_urb(0, GFP_KERNEL);
- if (!upriv->read_urb)
- goto error;
- if (le16_to_cpu(ep->wMaxPacketSize) != 64)
- pr_warn("bulk in: wMaxPacketSize!= 64\n");
- if (ep->bEndpointAddress != (2 | USB_DIR_IN))
- pr_warn("bulk in: bEndpointAddress: %d\n",
- ep->bEndpointAddress);
- upriv->read_pipe = usb_rcvbulkpipe(udev,
- ep->
- bEndpointAddress);
- upriv->read_urb->transfer_buffer =
- kmalloc(BULK_BUF_SIZE, GFP_KERNEL);
- if (!upriv->read_urb->transfer_buffer) {
- err("Couldn't allocate IN buffer");
- goto error;
- }
- }
-
- if (usb_endpoint_is_bulk_out(ep)) {
- /* we found a bulk out endpoint */
- if (upriv->bap_buf != NULL) {
- pr_warn("Found a second bulk out ep, ignored\n");
- continue;
- }
-
- if (le16_to_cpu(ep->wMaxPacketSize) != 64)
- pr_warn("bulk out: wMaxPacketSize != 64\n");
- if (ep->bEndpointAddress != 2)
- pr_warn("bulk out: bEndpointAddress: %d\n",
- ep->bEndpointAddress);
- upriv->write_pipe = usb_sndbulkpipe(udev,
- ep->
- bEndpointAddress);
- upriv->bap_buf = kmalloc(BULK_BUF_SIZE, GFP_KERNEL);
- if (!upriv->bap_buf) {
- err("Couldn't allocate bulk_out_buffer");
- goto error;
- }
- }
- }
- if (!upriv->bap_buf || !upriv->read_urb) {
- err("Didn't find the required bulk endpoints");
- goto error;
- }
-
- if (request_firmware(&fw_entry, "orinoco_ezusb_fw",
- &interface->dev) == 0) {
- firmware.size = fw_entry->size;
- firmware.code = fw_entry->data;
- }
- if (firmware.size && firmware.code) {
- if (ezusb_firmware_download(upriv, &firmware) < 0)
- goto error;
- } else {
- err("No firmware to download");
- goto error;
- }
-
- if (ezusb_hard_reset(priv) < 0) {
- err("Cannot reset the device");
- goto error;
- }
-
- /* If the firmware is already downloaded orinoco.c will call
- * ezusb_init but if the firmware is not already there, that will make
- * the kernel very unstable, so we try initializing here and quit in
- * case of error */
- if (ezusb_init(hw) < 0) {
- err("Couldn't initialize the device");
- err("Firmware may not be downloaded or may be wrong.");
- goto error;
- }
-
- /* Initialise the main driver */
- if (orinoco_init(priv) != 0) {
- err("orinoco_init() failed\n");
- goto error;
- }
-
- if (orinoco_if_add(priv, 0, 0, &ezusb_netdev_ops) != 0) {
- upriv->dev = NULL;
- err("%s: orinoco_if_add() failed", __func__);
- wiphy_unregister(priv_to_wiphy(priv));
- goto error;
- }
- upriv->dev = priv->ndev;
-
- goto exit;
-
- error:
- ezusb_delete(upriv);
- if (upriv->dev) {
- /* upriv->dev was 0, so ezusb_delete() didn't free it */
- free_orinocodev(priv);
- }
- upriv = NULL;
- retval = -EFAULT;
- exit:
- if (fw_entry) {
- firmware.code = NULL;
- firmware.size = 0;
- release_firmware(fw_entry);
- }
- usb_set_intfdata(interface, upriv);
- return retval;
-}
-
-
-static void ezusb_disconnect(struct usb_interface *intf)
-{
- struct ezusb_priv *upriv = usb_get_intfdata(intf);
- usb_set_intfdata(intf, NULL);
- ezusb_delete(upriv);
- printk(KERN_INFO PFX "Disconnected\n");
-}
-
-
-/* usb specific object needed to register this driver with the usb subsystem */
-static struct usb_driver orinoco_driver = {
- .name = DRIVER_NAME,
- .probe = ezusb_probe,
- .disconnect = ezusb_disconnect,
- .id_table = ezusb_table,
- .disable_hub_initiated_lpm = 1,
-};
-
-module_usb_driver(orinoco_driver);
-
-MODULE_AUTHOR("Manuel Estrada Sainz");
-MODULE_DESCRIPTION("Driver for Orinoco wireless LAN cards using EZUSB bridge");
-MODULE_LICENSE("Dual MPL/GPL");