diff options
Diffstat (limited to 'drivers/net/wireless/orinoco/orinoco_usb.c')
| -rw-r--r-- | drivers/net/wireless/orinoco/orinoco_usb.c | 1748 |
1 files changed, 0 insertions, 1748 deletions
diff --git a/drivers/net/wireless/orinoco/orinoco_usb.c b/drivers/net/wireless/orinoco/orinoco_usb.c deleted file mode 100644 index f2cd513d54b2..000000000000 --- a/drivers/net/wireless/orinoco/orinoco_usb.c +++ /dev/null @@ -1,1748 +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 "mic.h" -#include "orinoco.h" - -#ifndef URB_ASYNC_UNLINK -#define URB_ASYNC_UNLINK 0 -#endif - -/* 802.2 LLC/SNAP header used for Ethernet encapsulation over 802.11 */ -static const u8 encaps_hdr[] = {0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00}; -#define ENCAPS_OVERHEAD (sizeof(encaps_hdr) + 2) - -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 Wireless USB Card */ - -#define USB_AGERE_VENDOR_ID 0x0D4E /* Agere Systems */ -#define USB_AGERE_MODEL0801_ID 0x1000 /* Wireless USB Card Model 0801 */ -#define USB_AGERE_MODEL0802_ID 0x1001 /* Wireless USB Card Model 0802 */ -#define USB_AGERE_REBRANDED_ID 0x047A /* WLAN USB 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 WLAN USB 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 Wireless USB adapter */ - - -#define EZUSB_REQUEST_FW_TRANS 0xA0 -#define EZUSB_REQUEST_TRIGER 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[0]; -} __packed; - -/* Table of devices that work or may work with this driver */ -static 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; - atomic_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 (!atomic_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(u_long _ctx) -{ - struct request_context *ctx = (void *) _ctx; - - 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"); - atomic_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; - - atomic_set(&ctx->refcount, 1); - init_completion(&ctx->done); - - setup_timer(&ctx->timer, ezusb_request_timerfn, (u_long)ctx); - return ctx; -} - - -/* Hopefully the real complete_all will soon be exported, in the mean - * while this should work. */ -static inline void ezusb_complete_all(struct completion *comp) -{ - complete(comp); - complete(comp); - complete(comp); - complete(comp); -} - -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 orinoco_private *priv = ndev_priv(dev); - struct net_device_stats *stats = &priv->stats; - - if (ctx->state != EZUSB_CTX_COMPLETE) - stats->tx_errors++; - else - stats->tx_packets++; - - netif_wake_queue(dev); - } - ezusb_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"); - ezusb_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) { - atomic_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; - } - atomic_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; - } - /* fall through */ - 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; - /* fall through */ - - 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 */ -} - - -static void ezusb_req_ctx_wait(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: - if (in_softirq()) { - /* If we get called from a timer, timeout timers don't - * get the chance to run themselves. So we make sure - * that we don't sleep for ever */ - int msecs = DEF_TIMEOUT * (1000 / HZ); - while (!ctx->done.done && msecs--) - udelay(1000); - } else { - wait_event_interruptible(ctx->done.wait, - ctx->done.done); - } - break; - default: - /* Done or failed - nothing to wait for */ - break; - } -} - -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) -{ - u8 res_val = reset; /* avoid argument promotion */ - - if (!upriv->udev) { - err("%s: !upriv->udev", __func__); - return -EFAULT; - } - return 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); -} - -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) -{ - int req_size; - int retval = 0; - enum ezusb_state state; - - BUG_ON(in_irq()); - - 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_req_ctx_wait(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; - default: - err("%s: Unexpected context state %d", __func__, - state); - /* fall though */ - 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) -{ - 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); -} - -static int ezusb_read_ltv(struct hermes *hw, int bap, u16 rid, - unsigned bufsize, u16 *length, void *buf) -{ - 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); -} - -static int ezusb_doicmd_wait(struct hermes *hw, u16 cmd, u16 parm0, u16 parm1, - u16 parm2, struct hermes_response *resp) -{ - struct ezusb_priv *upriv = hw->priv; - struct request_context *ctx; - - __le16 data[4] = { - cpu_to_le16(cmd), - cpu_to_le16(parm0), - cpu_to_le16(parm1), - cpu_to_le16(parm2), - }; - netdev_dbg(upriv->dev, - "0x%04X, parm0 0x%04X, parm1 0x%04X, parm2 0x%04X\n", cmd, - parm0, parm1, parm2); - 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); -} - -static int ezusb_docmd_wait(struct hermes *hw, u16 cmd, u16 parm0, - struct hermes_response *resp) -{ - 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); -} - -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); -} - -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); -} - -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); -} - -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); - 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); -} - -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 = &priv->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; - - ctx = ezusb_alloc_ctx(upriv, EZUSB_RID_TX, 0); - if (!ctx) - goto busy; - - memset(ctx->buf, 0, BULK_BUF_SIZE); - buf = ctx->buf->data; - - tx_control = 0; - - err = orinoco_process_xmit_skb(skb, dev, priv, &tx_control, - &mic[0]); - if (err) - goto drop; - - { - __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); - - if (err) { - netif_start_queue(dev); - if (net_ratelimit()) - printk(KERN_ERR "%s: Error %d transmitting packet\n", - dev->name, err); - goto busy; - } - - dev->trans_start = jiffies; - 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_TRIGER, - USB_TYPE_VENDOR | USB_RECIP_DEVICE | - USB_DIR_OUT, 0x0, 0x0, NULL, 0, - DEF_TIMEOUT); - if (retval < 0) { - err("EZUSB_REQUEST_TRIGER 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; - - BUG_ON(in_interrupt()); - BUG_ON(!upriv); - - 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"); - 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); - 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 net_device *dev; - struct list_head *item; - struct list_head *tmp_item; - unsigned long flags; - - BUG_ON(in_interrupt()); - BUG_ON(!upriv); - - dev = upriv->dev; - 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); - atomic_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, - .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, - .ndo_get_stats = orinoco_get_stats, -}; - -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->altsetting[0].desc; - for (i = 0; i < iface_desc->bNumEndpoints; ++i) { - ep = &interface->altsetting[0].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) { - err("No free urbs available"); - 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"); |