/* * 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 #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #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; 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); 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_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()); 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"); 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->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");