1 /* src/prism2/driver/hfa384x_usb.c
3 * Functions that talk to the USB variantof the Intersil hfa384x MAC
5 * Copyright (C) 1999 AbsoluteValue Systems, Inc. All Rights Reserved.
6 * --------------------------------------------------------------------
10 * The contents of this file are subject to the Mozilla Public
11 * License Version 1.1 (the "License"); you may not use this file
12 * except in compliance with the License. You may obtain a copy of
13 * the License at http://www.mozilla.org/MPL/
15 * Software distributed under the License is distributed on an "AS
16 * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
17 * implied. See the License for the specific language governing
18 * rights and limitations under the License.
20 * Alternatively, the contents of this file may be used under the
21 * terms of the GNU Public License version 2 (the "GPL"), in which
22 * case the provisions of the GPL are applicable instead of the
23 * above. If you wish to allow the use of your version of this file
24 * only under the terms of the GPL and not to allow others to use
25 * your version of this file under the MPL, indicate your decision
26 * by deleting the provisions above and replace them with the notice
27 * and other provisions required by the GPL. If you do not delete
28 * the provisions above, a recipient may use your version of this
29 * file under either the MPL or the GPL.
31 * --------------------------------------------------------------------
33 * Inquiries regarding the linux-wlan Open Source project can be
36 * AbsoluteValue Systems Inc.
38 * http://www.linux-wlan.com
40 * --------------------------------------------------------------------
42 * Portions of the development of this software were funded by
43 * Intersil Corporation as part of PRISM(R) chipset product development.
45 * --------------------------------------------------------------------
47 * This file implements functions that correspond to the prism2/hfa384x
48 * 802.11 MAC hardware and firmware host interface.
50 * The functions can be considered to represent several levels of
51 * abstraction. The lowest level functions are simply C-callable wrappers
52 * around the register accesses. The next higher level represents C-callable
53 * prism2 API functions that match the Intersil documentation as closely
54 * as is reasonable. The next higher layer implements common sequences
55 * of invocations of the API layer (e.g. write to bap, followed by cmd).
58 * hfa384x_drvr_xxx Highest level abstractions provided by the
59 * hfa384x code. They are driver defined wrappers
60 * for common sequences. These functions generally
61 * use the services of the lower levels.
63 * hfa384x_drvr_xxxconfig An example of the drvr level abstraction. These
64 * functions are wrappers for the RID get/set
65 * sequence. They call copy_[to|from]_bap() and
66 * cmd_access(). These functions operate on the
67 * RIDs and buffers without validation. The caller
68 * is responsible for that.
70 * API wrapper functions:
71 * hfa384x_cmd_xxx functions that provide access to the f/w commands.
72 * The function arguments correspond to each command
73 * argument, even command arguments that get packed
74 * into single registers. These functions _just_
75 * issue the command by setting the cmd/parm regs
76 * & reading the status/resp regs. Additional
77 * activities required to fully use a command
78 * (read/write from/to bap, get/set int status etc.)
79 * are implemented separately. Think of these as
80 * C-callable prism2 commands.
82 * Lowest Layer Functions:
83 * hfa384x_docmd_xxx These functions implement the sequence required
84 * to issue any prism2 command. Primarily used by the
85 * hfa384x_cmd_xxx functions.
87 * hfa384x_bap_xxx BAP read/write access functions.
88 * Note: we usually use BAP0 for non-interrupt context
89 * and BAP1 for interrupt context.
91 * hfa384x_dl_xxx download related functions.
93 * Driver State Issues:
94 * Note that there are two pairs of functions that manage the
95 * 'initialized' and 'running' states of the hw/MAC combo. The four
96 * functions are create(), destroy(), start(), and stop(). create()
97 * sets up the data structures required to support the hfa384x_*
98 * functions and destroy() cleans them up. The start() function gets
99 * the actual hardware running and enables the interrupts. The stop()
100 * function shuts the hardware down. The sequence should be:
104 * . Do interesting things w/ the hardware
109 * Note that destroy() can be called without calling stop() first.
110 * --------------------------------------------------------------------
113 #include <linux/module.h>
114 #include <linux/kernel.h>
115 #include <linux/sched.h>
116 #include <linux/types.h>
117 #include <linux/slab.h>
118 #include <linux/wireless.h>
119 #include <linux/netdevice.h>
120 #include <linux/timer.h>
121 #include <linux/io.h>
122 #include <linux/delay.h>
123 #include <asm/byteorder.h>
124 #include <linux/bitops.h>
125 #include <linux/list.h>
126 #include <linux/usb.h>
127 #include <linux/byteorder/generic.h>
129 #define SUBMIT_URB(u, f) usb_submit_urb(u, f)
131 #include "p80211types.h"
132 #include "p80211hdr.h"
133 #include "p80211mgmt.h"
134 #include "p80211conv.h"
135 #include "p80211msg.h"
136 #include "p80211netdev.h"
137 #include "p80211req.h"
138 #include "p80211metadef.h"
139 #include "p80211metastruct.h"
141 #include "prism2mgmt.h"
148 #define THROTTLE_JIFFIES (HZ/8)
149 #define URB_ASYNC_UNLINK 0
150 #define USB_QUEUE_BULK 0
152 #define ROUNDUP64(a) (((a)+63)&~63)
155 static void dbprint_urb(struct urb *urb);
159 hfa384x_int_rxmonitor(wlandevice_t *wlandev, hfa384x_usb_rxfrm_t *rxfrm);
161 static void hfa384x_usb_defer(struct work_struct *data);
163 static int submit_rx_urb(hfa384x_t *hw, gfp_t flags);
165 static int submit_tx_urb(hfa384x_t *hw, struct urb *tx_urb, gfp_t flags);
167 /*---------------------------------------------------*/
169 static void hfa384x_usbout_callback(struct urb *urb);
170 static void hfa384x_ctlxout_callback(struct urb *urb);
171 static void hfa384x_usbin_callback(struct urb *urb);
174 hfa384x_usbin_txcompl(wlandevice_t *wlandev, hfa384x_usbin_t * usbin);
176 static void hfa384x_usbin_rx(wlandevice_t *wlandev, struct sk_buff *skb);
178 static void hfa384x_usbin_info(wlandevice_t *wlandev, hfa384x_usbin_t * usbin);
181 hfa384x_usbout_tx(wlandevice_t *wlandev, hfa384x_usbout_t *usbout);
183 static void hfa384x_usbin_ctlx(hfa384x_t *hw, hfa384x_usbin_t *usbin,
186 /*---------------------------------------------------*/
187 /* Functions to support the prism2 usb command queue */
189 static void hfa384x_usbctlxq_run(hfa384x_t *hw);
191 static void hfa384x_usbctlx_reqtimerfn(unsigned long data);
193 static void hfa384x_usbctlx_resptimerfn(unsigned long data);
195 static void hfa384x_usb_throttlefn(unsigned long data);
197 static void hfa384x_usbctlx_completion_task(unsigned long data);
199 static void hfa384x_usbctlx_reaper_task(unsigned long data);
201 static int hfa384x_usbctlx_submit(hfa384x_t *hw, hfa384x_usbctlx_t *ctlx);
203 static void unlocked_usbctlx_complete(hfa384x_t *hw, hfa384x_usbctlx_t *ctlx);
205 struct usbctlx_completor {
206 int (*complete) (struct usbctlx_completor *);
210 hfa384x_usbctlx_complete_sync(hfa384x_t *hw,
211 hfa384x_usbctlx_t *ctlx,
212 struct usbctlx_completor *completor);
215 unlocked_usbctlx_cancel_async(hfa384x_t *hw, hfa384x_usbctlx_t *ctlx);
217 static void hfa384x_cb_status(hfa384x_t *hw, const hfa384x_usbctlx_t *ctlx);
219 static void hfa384x_cb_rrid(hfa384x_t *hw, const hfa384x_usbctlx_t *ctlx);
222 usbctlx_get_status(const hfa384x_usb_cmdresp_t *cmdresp,
223 hfa384x_cmdresult_t *result);
226 usbctlx_get_rridresult(const hfa384x_usb_rridresp_t *rridresp,
227 hfa384x_rridresult_t *result);
229 /*---------------------------------------------------*/
230 /* Low level req/resp CTLX formatters and submitters */
232 hfa384x_docmd(hfa384x_t *hw,
234 hfa384x_metacmd_t *cmd,
235 ctlx_cmdcb_t cmdcb, ctlx_usercb_t usercb, void *usercb_data);
238 hfa384x_dorrid(hfa384x_t *hw,
242 unsigned int riddatalen,
243 ctlx_cmdcb_t cmdcb, ctlx_usercb_t usercb, void *usercb_data);
246 hfa384x_dowrid(hfa384x_t *hw,
250 unsigned int riddatalen,
251 ctlx_cmdcb_t cmdcb, ctlx_usercb_t usercb, void *usercb_data);
254 hfa384x_dormem(hfa384x_t *hw,
260 ctlx_cmdcb_t cmdcb, ctlx_usercb_t usercb, void *usercb_data);
263 hfa384x_dowmem(hfa384x_t *hw,
269 ctlx_cmdcb_t cmdcb, ctlx_usercb_t usercb, void *usercb_data);
271 static int hfa384x_isgood_pdrcode(u16 pdrcode);
273 static inline const char *ctlxstr(CTLX_STATE s)
275 static const char *ctlx_str[] = {
280 "Request packet submitted",
281 "Request packet completed",
282 "Response packet completed"
288 static inline hfa384x_usbctlx_t *get_active_ctlx(hfa384x_t * hw)
290 return list_entry(hw->ctlxq.active.next, hfa384x_usbctlx_t, list);
294 void dbprint_urb(struct urb *urb)
296 pr_debug("urb->pipe=0x%08x\n", urb->pipe);
297 pr_debug("urb->status=0x%08x\n", urb->status);
298 pr_debug("urb->transfer_flags=0x%08x\n", urb->transfer_flags);
299 pr_debug("urb->transfer_buffer=0x%08x\n",
300 (unsigned int)urb->transfer_buffer);
301 pr_debug("urb->transfer_buffer_length=0x%08x\n",
302 urb->transfer_buffer_length);
303 pr_debug("urb->actual_length=0x%08x\n", urb->actual_length);
304 pr_debug("urb->bandwidth=0x%08x\n", urb->bandwidth);
305 pr_debug("urb->setup_packet(ctl)=0x%08x\n",
306 (unsigned int)urb->setup_packet);
307 pr_debug("urb->start_frame(iso/irq)=0x%08x\n", urb->start_frame);
308 pr_debug("urb->interval(irq)=0x%08x\n", urb->interval);
309 pr_debug("urb->error_count(iso)=0x%08x\n", urb->error_count);
310 pr_debug("urb->timeout=0x%08x\n", urb->timeout);
311 pr_debug("urb->context=0x%08x\n", (unsigned int)urb->context);
312 pr_debug("urb->complete=0x%08x\n", (unsigned int)urb->complete);
316 /*----------------------------------------------------------------
319 * Listen for input data on the BULK-IN pipe. If the pipe has
320 * stalled then schedule it to be reset.
324 * memflags memory allocation flags
327 * error code from submission
331 ----------------------------------------------------------------*/
332 static int submit_rx_urb(hfa384x_t *hw, gfp_t memflags)
337 skb = dev_alloc_skb(sizeof(hfa384x_usbin_t));
343 /* Post the IN urb */
344 usb_fill_bulk_urb(&hw->rx_urb, hw->usb,
346 skb->data, sizeof(hfa384x_usbin_t),
347 hfa384x_usbin_callback, hw->wlandev);
349 hw->rx_urb_skb = skb;
352 if (!hw->wlandev->hwremoved &&
353 !test_bit(WORK_RX_HALT, &hw->usb_flags)) {
354 result = SUBMIT_URB(&hw->rx_urb, memflags);
356 /* Check whether we need to reset the RX pipe */
357 if (result == -EPIPE) {
359 "%s rx pipe stalled: requesting reset\n",
360 hw->wlandev->netdev->name);
361 if (!test_and_set_bit(WORK_RX_HALT, &hw->usb_flags))
362 schedule_work(&hw->usb_work);
366 /* Don't leak memory if anything should go wrong */
369 hw->rx_urb_skb = NULL;
376 /*----------------------------------------------------------------
379 * Prepares and submits the URB of transmitted data. If the
380 * submission fails then it will schedule the output pipe to
385 * tx_urb URB of data for tranmission
386 * memflags memory allocation flags
389 * error code from submission
393 ----------------------------------------------------------------*/
394 static int submit_tx_urb(hfa384x_t *hw, struct urb *tx_urb, gfp_t memflags)
396 struct net_device *netdev = hw->wlandev->netdev;
400 if (netif_running(netdev)) {
402 if (!hw->wlandev->hwremoved
403 && !test_bit(WORK_TX_HALT, &hw->usb_flags)) {
404 result = SUBMIT_URB(tx_urb, memflags);
406 /* Test whether we need to reset the TX pipe */
407 if (result == -EPIPE) {
409 "%s tx pipe stalled: requesting reset\n",
411 set_bit(WORK_TX_HALT, &hw->usb_flags);
412 schedule_work(&hw->usb_work);
413 } else if (result == 0) {
414 netif_stop_queue(netdev);
422 /*----------------------------------------------------------------
425 * There are some things that the USB stack cannot do while
426 * in interrupt context, so we arrange this function to run
427 * in process context.
430 * hw device structure
436 * process (by design)
437 ----------------------------------------------------------------*/
438 static void hfa384x_usb_defer(struct work_struct *data)
440 hfa384x_t *hw = container_of(data, struct hfa384x, usb_work);
441 struct net_device *netdev = hw->wlandev->netdev;
443 /* Don't bother trying to reset anything if the plug
444 * has been pulled ...
446 if (hw->wlandev->hwremoved)
449 /* Reception has stopped: try to reset the input pipe */
450 if (test_bit(WORK_RX_HALT, &hw->usb_flags)) {
453 usb_kill_urb(&hw->rx_urb); /* Cannot be holding spinlock! */
455 ret = usb_clear_halt(hw->usb, hw->endp_in);
458 "Failed to clear rx pipe for %s: err=%d\n",
461 printk(KERN_INFO "%s rx pipe reset complete.\n",
463 clear_bit(WORK_RX_HALT, &hw->usb_flags);
464 set_bit(WORK_RX_RESUME, &hw->usb_flags);
468 /* Resume receiving data back from the device. */
469 if (test_bit(WORK_RX_RESUME, &hw->usb_flags)) {
472 ret = submit_rx_urb(hw, GFP_KERNEL);
475 "Failed to resume %s rx pipe.\n", netdev->name);
477 clear_bit(WORK_RX_RESUME, &hw->usb_flags);
481 /* Transmission has stopped: try to reset the output pipe */
482 if (test_bit(WORK_TX_HALT, &hw->usb_flags)) {
485 usb_kill_urb(&hw->tx_urb);
486 ret = usb_clear_halt(hw->usb, hw->endp_out);
489 "Failed to clear tx pipe for %s: err=%d\n",
492 printk(KERN_INFO "%s tx pipe reset complete.\n",
494 clear_bit(WORK_TX_HALT, &hw->usb_flags);
495 set_bit(WORK_TX_RESUME, &hw->usb_flags);
497 /* Stopping the BULK-OUT pipe also blocked
498 * us from sending any more CTLX URBs, so
499 * we need to re-run our queue ...
501 hfa384x_usbctlxq_run(hw);
505 /* Resume transmitting. */
506 if (test_and_clear_bit(WORK_TX_RESUME, &hw->usb_flags))
507 netif_wake_queue(hw->wlandev->netdev);
510 /*----------------------------------------------------------------
513 * Sets up the hfa384x_t data structure for use. Note this
514 * does _not_ initialize the actual hardware, just the data structures
515 * we use to keep track of its state.
518 * hw device structure
519 * irq device irq number
520 * iobase i/o base address for register access
521 * membase memory base address for register access
530 ----------------------------------------------------------------*/
531 void hfa384x_create(hfa384x_t *hw, struct usb_device *usb)
533 memset(hw, 0, sizeof(hfa384x_t));
536 /* set up the endpoints */
537 hw->endp_in = usb_rcvbulkpipe(usb, 1);
538 hw->endp_out = usb_sndbulkpipe(usb, 2);
540 /* Set up the waitq */
541 init_waitqueue_head(&hw->cmdq);
543 /* Initialize the command queue */
544 spin_lock_init(&hw->ctlxq.lock);
545 INIT_LIST_HEAD(&hw->ctlxq.pending);
546 INIT_LIST_HEAD(&hw->ctlxq.active);
547 INIT_LIST_HEAD(&hw->ctlxq.completing);
548 INIT_LIST_HEAD(&hw->ctlxq.reapable);
550 /* Initialize the authentication queue */
551 skb_queue_head_init(&hw->authq);
553 tasklet_init(&hw->reaper_bh,
554 hfa384x_usbctlx_reaper_task, (unsigned long)hw);
555 tasklet_init(&hw->completion_bh,
556 hfa384x_usbctlx_completion_task, (unsigned long)hw);
557 INIT_WORK(&hw->link_bh, prism2sta_processing_defer);
558 INIT_WORK(&hw->usb_work, hfa384x_usb_defer);
560 init_timer(&hw->throttle);
561 hw->throttle.function = hfa384x_usb_throttlefn;
562 hw->throttle.data = (unsigned long)hw;
564 init_timer(&hw->resptimer);
565 hw->resptimer.function = hfa384x_usbctlx_resptimerfn;
566 hw->resptimer.data = (unsigned long)hw;
568 init_timer(&hw->reqtimer);
569 hw->reqtimer.function = hfa384x_usbctlx_reqtimerfn;
570 hw->reqtimer.data = (unsigned long)hw;
572 usb_init_urb(&hw->rx_urb);
573 usb_init_urb(&hw->tx_urb);
574 usb_init_urb(&hw->ctlx_urb);
576 hw->link_status = HFA384x_LINK_NOTCONNECTED;
577 hw->state = HFA384x_STATE_INIT;
579 INIT_WORK(&hw->commsqual_bh, prism2sta_commsqual_defer);
580 init_timer(&hw->commsqual_timer);
581 hw->commsqual_timer.data = (unsigned long)hw;
582 hw->commsqual_timer.function = prism2sta_commsqual_timer;
585 /*----------------------------------------------------------------
588 * Partner to hfa384x_create(). This function cleans up the hw
589 * structure so that it can be freed by the caller using a simple
590 * kfree. Currently, this function is just a placeholder. If, at some
591 * point in the future, an hw in the 'shutdown' state requires a 'deep'
592 * kfree, this is where it should be done. Note that if this function
593 * is called on a _running_ hw structure, the drvr_stop() function is
597 * hw device structure
600 * nothing, this function is not allowed to fail.
606 ----------------------------------------------------------------*/
607 void hfa384x_destroy(hfa384x_t *hw)
611 if (hw->state == HFA384x_STATE_RUNNING)
612 hfa384x_drvr_stop(hw);
613 hw->state = HFA384x_STATE_PREINIT;
615 if (hw->scanresults) {
616 kfree(hw->scanresults);
617 hw->scanresults = NULL;
620 /* Now to clean out the auth queue */
621 while ((skb = skb_dequeue(&hw->authq)))
625 static hfa384x_usbctlx_t *usbctlx_alloc(void)
627 hfa384x_usbctlx_t *ctlx;
629 ctlx = kmalloc(sizeof(*ctlx), in_interrupt() ? GFP_ATOMIC : GFP_KERNEL);
631 memset(ctlx, 0, sizeof(*ctlx));
632 init_completion(&ctlx->done);
639 usbctlx_get_status(const hfa384x_usb_cmdresp_t *cmdresp,
640 hfa384x_cmdresult_t *result)
642 result->status = le16_to_cpu(cmdresp->status);
643 result->resp0 = le16_to_cpu(cmdresp->resp0);
644 result->resp1 = le16_to_cpu(cmdresp->resp1);
645 result->resp2 = le16_to_cpu(cmdresp->resp2);
647 pr_debug("cmdresult:status=0x%04x "
648 "resp0=0x%04x resp1=0x%04x resp2=0x%04x\n",
649 result->status, result->resp0, result->resp1, result->resp2);
651 return result->status & HFA384x_STATUS_RESULT;
655 usbctlx_get_rridresult(const hfa384x_usb_rridresp_t *rridresp,
656 hfa384x_rridresult_t *result)
658 result->rid = le16_to_cpu(rridresp->rid);
659 result->riddata = rridresp->data;
660 result->riddata_len = ((le16_to_cpu(rridresp->frmlen) - 1) * 2);
664 /*----------------------------------------------------------------
666 * This completor must be passed to hfa384x_usbctlx_complete_sync()
667 * when processing a CTLX that returns a hfa384x_cmdresult_t structure.
668 ----------------------------------------------------------------*/
669 struct usbctlx_cmd_completor {
670 struct usbctlx_completor head;
672 const hfa384x_usb_cmdresp_t *cmdresp;
673 hfa384x_cmdresult_t *result;
676 static inline int usbctlx_cmd_completor_fn(struct usbctlx_completor *head)
678 struct usbctlx_cmd_completor *complete;
680 complete = (struct usbctlx_cmd_completor *) head;
681 return usbctlx_get_status(complete->cmdresp, complete->result);
684 static inline struct usbctlx_completor *init_cmd_completor(
685 struct usbctlx_cmd_completor
687 const hfa384x_usb_cmdresp_t
689 hfa384x_cmdresult_t *result)
691 completor->head.complete = usbctlx_cmd_completor_fn;
692 completor->cmdresp = cmdresp;
693 completor->result = result;
694 return &(completor->head);
697 /*----------------------------------------------------------------
699 * This completor must be passed to hfa384x_usbctlx_complete_sync()
700 * when processing a CTLX that reads a RID.
701 ----------------------------------------------------------------*/
702 struct usbctlx_rrid_completor {
703 struct usbctlx_completor head;
705 const hfa384x_usb_rridresp_t *rridresp;
707 unsigned int riddatalen;
710 static int usbctlx_rrid_completor_fn(struct usbctlx_completor *head)
712 struct usbctlx_rrid_completor *complete;
713 hfa384x_rridresult_t rridresult;
715 complete = (struct usbctlx_rrid_completor *) head;
716 usbctlx_get_rridresult(complete->rridresp, &rridresult);
718 /* Validate the length, note body len calculation in bytes */
719 if (rridresult.riddata_len != complete->riddatalen) {
721 "RID len mismatch, rid=0x%04x hlen=%d fwlen=%d\n",
723 complete->riddatalen, rridresult.riddata_len);
727 memcpy(complete->riddata, rridresult.riddata, complete->riddatalen);
731 static inline struct usbctlx_completor *init_rrid_completor(
732 struct usbctlx_rrid_completor
734 const hfa384x_usb_rridresp_t
737 unsigned int riddatalen)
739 completor->head.complete = usbctlx_rrid_completor_fn;
740 completor->rridresp = rridresp;
741 completor->riddata = riddata;
742 completor->riddatalen = riddatalen;
743 return &(completor->head);
746 /*----------------------------------------------------------------
748 * Interprets the results of a synchronous RID-write
749 ----------------------------------------------------------------*/
750 typedef struct usbctlx_cmd_completor usbctlx_wrid_completor_t;
751 #define init_wrid_completor init_cmd_completor
753 /*----------------------------------------------------------------
755 * Interprets the results of a synchronous memory-write
756 ----------------------------------------------------------------*/
757 typedef struct usbctlx_cmd_completor usbctlx_wmem_completor_t;
758 #define init_wmem_completor init_cmd_completor
760 /*----------------------------------------------------------------
762 * Interprets the results of a synchronous memory-read
763 ----------------------------------------------------------------*/
764 struct usbctlx_rmem_completor {
765 struct usbctlx_completor head;
767 const hfa384x_usb_rmemresp_t *rmemresp;
771 typedef struct usbctlx_rmem_completor usbctlx_rmem_completor_t;
773 static int usbctlx_rmem_completor_fn(struct usbctlx_completor *head)
775 usbctlx_rmem_completor_t *complete = (usbctlx_rmem_completor_t *) head;
777 pr_debug("rmemresp:len=%d\n", complete->rmemresp->frmlen);
778 memcpy(complete->data, complete->rmemresp->data, complete->len);
782 static inline struct usbctlx_completor *init_rmem_completor(
783 usbctlx_rmem_completor_t
785 hfa384x_usb_rmemresp_t
790 completor->head.complete = usbctlx_rmem_completor_fn;
791 completor->rmemresp = rmemresp;
792 completor->data = data;
793 completor->len = len;
794 return &(completor->head);
797 /*----------------------------------------------------------------
800 * Ctlx_complete handler for async CMD type control exchanges.
801 * mark the hw struct as such.
803 * Note: If the handling is changed here, it should probably be
804 * changed in docmd as well.
808 * ctlx completed CTLX
817 ----------------------------------------------------------------*/
818 static void hfa384x_cb_status(hfa384x_t *hw, const hfa384x_usbctlx_t *ctlx)
820 if (ctlx->usercb != NULL) {
821 hfa384x_cmdresult_t cmdresult;
823 if (ctlx->state != CTLX_COMPLETE) {
824 memset(&cmdresult, 0, sizeof(cmdresult));
826 HFA384x_STATUS_RESULT_SET(HFA384x_CMD_ERR);
828 usbctlx_get_status(&ctlx->inbuf.cmdresp, &cmdresult);
831 ctlx->usercb(hw, &cmdresult, ctlx->usercb_data);
835 /*----------------------------------------------------------------
838 * CTLX completion handler for async RRID type control exchanges.
840 * Note: If the handling is changed here, it should probably be
841 * changed in dorrid as well.
845 * ctlx completed CTLX
854 ----------------------------------------------------------------*/
855 static void hfa384x_cb_rrid(hfa384x_t *hw, const hfa384x_usbctlx_t *ctlx)
857 if (ctlx->usercb != NULL) {
858 hfa384x_rridresult_t rridresult;
860 if (ctlx->state != CTLX_COMPLETE) {
861 memset(&rridresult, 0, sizeof(rridresult));
862 rridresult.rid = le16_to_cpu(ctlx->outbuf.rridreq.rid);
864 usbctlx_get_rridresult(&ctlx->inbuf.rridresp,
868 ctlx->usercb(hw, &rridresult, ctlx->usercb_data);
872 static inline int hfa384x_docmd_wait(hfa384x_t *hw, hfa384x_metacmd_t *cmd)
874 return hfa384x_docmd(hw, DOWAIT, cmd, NULL, NULL, NULL);
878 hfa384x_docmd_async(hfa384x_t *hw,
879 hfa384x_metacmd_t *cmd,
880 ctlx_cmdcb_t cmdcb, ctlx_usercb_t usercb, void *usercb_data)
882 return hfa384x_docmd(hw, DOASYNC, cmd, cmdcb, usercb, usercb_data);
886 hfa384x_dorrid_wait(hfa384x_t *hw, u16 rid, void *riddata,
887 unsigned int riddatalen)
889 return hfa384x_dorrid(hw, DOWAIT,
890 rid, riddata, riddatalen, NULL, NULL, NULL);
894 hfa384x_dorrid_async(hfa384x_t *hw,
895 u16 rid, void *riddata, unsigned int riddatalen,
897 ctlx_usercb_t usercb, void *usercb_data)
899 return hfa384x_dorrid(hw, DOASYNC,
900 rid, riddata, riddatalen,
901 cmdcb, usercb, usercb_data);
905 hfa384x_dowrid_wait(hfa384x_t *hw, u16 rid, void *riddata,
906 unsigned int riddatalen)
908 return hfa384x_dowrid(hw, DOWAIT,
909 rid, riddata, riddatalen, NULL, NULL, NULL);
913 hfa384x_dowrid_async(hfa384x_t *hw,
914 u16 rid, void *riddata, unsigned int riddatalen,
916 ctlx_usercb_t usercb, void *usercb_data)
918 return hfa384x_dowrid(hw, DOASYNC,
919 rid, riddata, riddatalen,
920 cmdcb, usercb, usercb_data);
924 hfa384x_dormem_wait(hfa384x_t *hw,
925 u16 page, u16 offset, void *data, unsigned int len)
927 return hfa384x_dormem(hw, DOWAIT,
928 page, offset, data, len, NULL, NULL, NULL);
932 hfa384x_dormem_async(hfa384x_t *hw,
933 u16 page, u16 offset, void *data, unsigned int len,
935 ctlx_usercb_t usercb, void *usercb_data)
937 return hfa384x_dormem(hw, DOASYNC,
938 page, offset, data, len,
939 cmdcb, usercb, usercb_data);
943 hfa384x_dowmem_wait(hfa384x_t *hw,
944 u16 page, u16 offset, void *data, unsigned int len)
946 return hfa384x_dowmem(hw, DOWAIT,
947 page, offset, data, len, NULL, NULL, NULL);
951 hfa384x_dowmem_async(hfa384x_t *hw,
957 ctlx_usercb_t usercb, void *usercb_data)
959 return hfa384x_dowmem(hw, DOASYNC,
960 page, offset, data, len,
961 cmdcb, usercb, usercb_data);
964 /*----------------------------------------------------------------
965 * hfa384x_cmd_initialize
967 * Issues the initialize command and sets the hw->state based
971 * hw device structure
975 * >0 f/w reported error - f/w status code
976 * <0 driver reported error
982 ----------------------------------------------------------------*/
983 int hfa384x_cmd_initialize(hfa384x_t *hw)
987 hfa384x_metacmd_t cmd;
989 cmd.cmd = HFA384x_CMDCODE_INIT;
994 result = hfa384x_docmd_wait(hw, &cmd);
996 pr_debug("cmdresp.init: "
997 "status=0x%04x, resp0=0x%04x, "
998 "resp1=0x%04x, resp2=0x%04x\n",
1000 cmd.result.resp0, cmd.result.resp1, cmd.result.resp2);
1002 for (i = 0; i < HFA384x_NUMPORTS_MAX; i++)
1003 hw->port_enabled[i] = 0;
1006 hw->link_status = HFA384x_LINK_NOTCONNECTED;
1011 /*----------------------------------------------------------------
1012 * hfa384x_cmd_disable
1014 * Issues the disable command to stop communications on one of
1018 * hw device structure
1019 * macport MAC port number (host order)
1023 * >0 f/w reported failure - f/w status code
1024 * <0 driver reported error (timeout|bad arg)
1030 ----------------------------------------------------------------*/
1031 int hfa384x_cmd_disable(hfa384x_t *hw, u16 macport)
1034 hfa384x_metacmd_t cmd;
1036 cmd.cmd = HFA384x_CMD_CMDCODE_SET(HFA384x_CMDCODE_DISABLE) |
1037 HFA384x_CMD_MACPORT_SET(macport);
1042 result = hfa384x_docmd_wait(hw, &cmd);
1047 /*----------------------------------------------------------------
1048 * hfa384x_cmd_enable
1050 * Issues the enable command to enable communications on one of
1054 * hw device structure
1055 * macport MAC port number
1059 * >0 f/w reported failure - f/w status code
1060 * <0 driver reported error (timeout|bad arg)
1066 ----------------------------------------------------------------*/
1067 int hfa384x_cmd_enable(hfa384x_t *hw, u16 macport)
1070 hfa384x_metacmd_t cmd;
1072 cmd.cmd = HFA384x_CMD_CMDCODE_SET(HFA384x_CMDCODE_ENABLE) |
1073 HFA384x_CMD_MACPORT_SET(macport);
1078 result = hfa384x_docmd_wait(hw, &cmd);
1083 /*----------------------------------------------------------------
1084 * hfa384x_cmd_monitor
1086 * Enables the 'monitor mode' of the MAC. Here's the description of
1087 * monitor mode that I've received thus far:
1089 * "The "monitor mode" of operation is that the MAC passes all
1090 * frames for which the PLCP checks are correct. All received
1091 * MPDUs are passed to the host with MAC Port = 7, with a
1092 * receive status of good, FCS error, or undecryptable. Passing
1093 * certain MPDUs is a violation of the 802.11 standard, but useful
1094 * for a debugging tool." Normal communication is not possible
1095 * while monitor mode is enabled.
1098 * hw device structure
1099 * enable a code (0x0b|0x0f) that enables/disables
1100 * monitor mode. (host order)
1104 * >0 f/w reported failure - f/w status code
1105 * <0 driver reported error (timeout|bad arg)
1111 ----------------------------------------------------------------*/
1112 int hfa384x_cmd_monitor(hfa384x_t *hw, u16 enable)
1115 hfa384x_metacmd_t cmd;
1117 cmd.cmd = HFA384x_CMD_CMDCODE_SET(HFA384x_CMDCODE_MONITOR) |
1118 HFA384x_CMD_AINFO_SET(enable);
1123 result = hfa384x_docmd_wait(hw, &cmd);
1128 /*----------------------------------------------------------------
1129 * hfa384x_cmd_download
1131 * Sets the controls for the MAC controller code/data download
1132 * process. The arguments set the mode and address associated
1133 * with a download. Note that the aux registers should be enabled
1134 * prior to setting one of the download enable modes.
1137 * hw device structure
1138 * mode 0 - Disable programming and begin code exec
1139 * 1 - Enable volatile mem programming
1140 * 2 - Enable non-volatile mem programming
1141 * 3 - Program non-volatile section from NV download
1145 * highaddr For mode 1, sets the high & low order bits of
1146 * the "destination address". This address will be
1147 * the execution start address when download is
1148 * subsequently disabled.
1149 * For mode 2, sets the high & low order bits of
1150 * the destination in NV ram.
1151 * For modes 0 & 3, should be zero. (host order)
1152 * NOTE: these are CMD format.
1153 * codelen Length of the data to write in mode 2,
1154 * zero otherwise. (host order)
1158 * >0 f/w reported failure - f/w status code
1159 * <0 driver reported error (timeout|bad arg)
1165 ----------------------------------------------------------------*/
1166 int hfa384x_cmd_download(hfa384x_t *hw, u16 mode, u16 lowaddr,
1167 u16 highaddr, u16 codelen)
1170 hfa384x_metacmd_t cmd;
1172 pr_debug("mode=%d, lowaddr=0x%04x, highaddr=0x%04x, codelen=%d\n",
1173 mode, lowaddr, highaddr, codelen);
1175 cmd.cmd = (HFA384x_CMD_CMDCODE_SET(HFA384x_CMDCODE_DOWNLD) |
1176 HFA384x_CMD_PROGMODE_SET(mode));
1178 cmd.parm0 = lowaddr;
1179 cmd.parm1 = highaddr;
1180 cmd.parm2 = codelen;
1182 result = hfa384x_docmd_wait(hw, &cmd);
1187 /*----------------------------------------------------------------
1190 * Perform a reset of the hfa38xx MAC core. We assume that the hw
1191 * structure is in its "created" state. That is, it is initialized
1192 * with proper values. Note that if a reset is done after the
1193 * device has been active for awhile, the caller might have to clean
1194 * up some leftover cruft in the hw structure.
1197 * hw device structure
1198 * holdtime how long (in ms) to hold the reset
1199 * settletime how long (in ms) to wait after releasing
1209 ----------------------------------------------------------------*/
1210 int hfa384x_corereset(hfa384x_t *hw, int holdtime, int settletime, int genesis)
1214 result = usb_reset_device(hw->usb);
1216 printk(KERN_ERR "usb_reset_device() failed, result=%d.\n",
1223 /*----------------------------------------------------------------
1224 * hfa384x_usbctlx_complete_sync
1226 * Waits for a synchronous CTLX object to complete,
1227 * and then handles the response.
1230 * hw device structure
1232 * completor functor object to decide what to
1233 * do with the CTLX's result.
1237 * -ERESTARTSYS Interrupted by a signal
1239 * -ENODEV Adapter was unplugged
1240 * ??? Result from completor
1246 ----------------------------------------------------------------*/
1247 static int hfa384x_usbctlx_complete_sync(hfa384x_t *hw,
1248 hfa384x_usbctlx_t *ctlx,
1249 struct usbctlx_completor *completor)
1251 unsigned long flags;
1254 result = wait_for_completion_interruptible(&ctlx->done);
1256 spin_lock_irqsave(&hw->ctlxq.lock, flags);
1259 * We can only handle the CTLX if the USB disconnect
1260 * function has not run yet ...
1263 if (hw->wlandev->hwremoved) {
1264 spin_unlock_irqrestore(&hw->ctlxq.lock, flags);
1266 } else if (result != 0) {
1270 * We were probably interrupted, so delete
1271 * this CTLX asynchronously, kill the timers
1272 * and the URB, and then start the next
1275 * NOTE: We can only delete the timers and
1276 * the URB if this CTLX is active.
1278 if (ctlx == get_active_ctlx(hw)) {
1279 spin_unlock_irqrestore(&hw->ctlxq.lock, flags);
1281 del_singleshot_timer_sync(&hw->reqtimer);
1282 del_singleshot_timer_sync(&hw->resptimer);
1283 hw->req_timer_done = 1;
1284 hw->resp_timer_done = 1;
1285 usb_kill_urb(&hw->ctlx_urb);
1287 spin_lock_irqsave(&hw->ctlxq.lock, flags);
1292 * This scenario is so unlikely that I'm
1293 * happy with a grubby "goto" solution ...
1295 if (hw->wlandev->hwremoved)
1300 * The completion task will send this CTLX
1301 * to the reaper the next time it runs. We
1302 * are no longer in a hurry.
1305 ctlx->state = CTLX_REQ_FAILED;
1306 list_move_tail(&ctlx->list, &hw->ctlxq.completing);
1308 spin_unlock_irqrestore(&hw->ctlxq.lock, flags);
1311 hfa384x_usbctlxq_run(hw);
1313 if (ctlx->state == CTLX_COMPLETE) {
1314 result = completor->complete(completor);
1316 printk(KERN_WARNING "CTLX[%d] error: state(%s)\n",
1317 le16_to_cpu(ctlx->outbuf.type),
1318 ctlxstr(ctlx->state));
1322 list_del(&ctlx->list);
1323 spin_unlock_irqrestore(&hw->ctlxq.lock, flags);
1330 /*----------------------------------------------------------------
1333 * Constructs a command CTLX and submits it.
1335 * NOTE: Any changes to the 'post-submit' code in this function
1336 * need to be carried over to hfa384x_cbcmd() since the handling
1337 * is virtually identical.
1340 * hw device structure
1341 * mode DOWAIT or DOASYNC
1342 * cmd cmd structure. Includes all arguments and result
1343 * data points. All in host order. in host order
1344 * cmdcb command-specific callback
1345 * usercb user callback for async calls, NULL for DOWAIT calls
1346 * usercb_data user supplied data pointer for async calls, NULL
1352 * -ERESTARTSYS Awakened on signal
1353 * >0 command indicated error, Status and Resp0-2 are
1361 ----------------------------------------------------------------*/
1363 hfa384x_docmd(hfa384x_t *hw,
1365 hfa384x_metacmd_t *cmd,
1366 ctlx_cmdcb_t cmdcb, ctlx_usercb_t usercb, void *usercb_data)
1369 hfa384x_usbctlx_t *ctlx;
1371 ctlx = usbctlx_alloc();
1377 /* Initialize the command */
1378 ctlx->outbuf.cmdreq.type = cpu_to_le16(HFA384x_USB_CMDREQ);
1379 ctlx->outbuf.cmdreq.cmd = cpu_to_le16(cmd->cmd);
1380 ctlx->outbuf.cmdreq.parm0 = cpu_to_le16(cmd->parm0);
1381 ctlx->outbuf.cmdreq.parm1 = cpu_to_le16(cmd->parm1);
1382 ctlx->outbuf.cmdreq.parm2 = cpu_to_le16(cmd->parm2);
1384 ctlx->outbufsize = sizeof(ctlx->outbuf.cmdreq);
1386 pr_debug("cmdreq: cmd=0x%04x "
1387 "parm0=0x%04x parm1=0x%04x parm2=0x%04x\n",
1388 cmd->cmd, cmd->parm0, cmd->parm1, cmd->parm2);
1390 ctlx->reapable = mode;
1391 ctlx->cmdcb = cmdcb;
1392 ctlx->usercb = usercb;
1393 ctlx->usercb_data = usercb_data;
1395 result = hfa384x_usbctlx_submit(hw, ctlx);
1398 } else if (mode == DOWAIT) {
1399 struct usbctlx_cmd_completor completor;
1402 hfa384x_usbctlx_complete_sync(hw, ctlx,
1403 init_cmd_completor(&completor,
1415 /*----------------------------------------------------------------
1418 * Constructs a read rid CTLX and issues it.
1420 * NOTE: Any changes to the 'post-submit' code in this function
1421 * need to be carried over to hfa384x_cbrrid() since the handling
1422 * is virtually identical.
1425 * hw device structure
1426 * mode DOWAIT or DOASYNC
1427 * rid Read RID number (host order)
1428 * riddata Caller supplied buffer that MAC formatted RID.data
1429 * record will be written to for DOWAIT calls. Should
1430 * be NULL for DOASYNC calls.
1431 * riddatalen Buffer length for DOWAIT calls. Zero for DOASYNC calls.
1432 * cmdcb command callback for async calls, NULL for DOWAIT calls
1433 * usercb user callback for async calls, NULL for DOWAIT calls
1434 * usercb_data user supplied data pointer for async calls, NULL
1440 * -ERESTARTSYS Awakened on signal
1441 * -ENODATA riddatalen != macdatalen
1442 * >0 command indicated error, Status and Resp0-2 are
1448 * interrupt (DOASYNC)
1449 * process (DOWAIT or DOASYNC)
1450 ----------------------------------------------------------------*/
1452 hfa384x_dorrid(hfa384x_t *hw,
1456 unsigned int riddatalen,
1457 ctlx_cmdcb_t cmdcb, ctlx_usercb_t usercb, void *usercb_data)
1460 hfa384x_usbctlx_t *ctlx;
1462 ctlx = usbctlx_alloc();
1468 /* Initialize the command */
1469 ctlx->outbuf.rridreq.type = cpu_to_le16(HFA384x_USB_RRIDREQ);
1470 ctlx->outbuf.rridreq.frmlen =
1471 cpu_to_le16(sizeof(ctlx->outbuf.rridreq.rid));
1472 ctlx->outbuf.rridreq.rid = cpu_to_le16(rid);
1474 ctlx->outbufsize = sizeof(ctlx->outbuf.rridreq);
1476 ctlx->reapable = mode;
1477 ctlx->cmdcb = cmdcb;
1478 ctlx->usercb = usercb;
1479 ctlx->usercb_data = usercb_data;
1481 /* Submit the CTLX */
1482 result = hfa384x_usbctlx_submit(hw, ctlx);
1485 } else if (mode == DOWAIT) {
1486 struct usbctlx_rrid_completor completor;
1489 hfa384x_usbctlx_complete_sync(hw, ctlx,
1492 &ctlx->inbuf.rridresp,
1493 riddata, riddatalen));
1500 /*----------------------------------------------------------------
1503 * Constructs a write rid CTLX and issues it.
1505 * NOTE: Any changes to the 'post-submit' code in this function
1506 * need to be carried over to hfa384x_cbwrid() since the handling
1507 * is virtually identical.
1510 * hw device structure
1511 * enum cmd_mode DOWAIT or DOASYNC
1513 * riddata Data portion of RID formatted for MAC
1514 * riddatalen Length of the data portion in bytes
1515 * cmdcb command callback for async calls, NULL for DOWAIT calls
1516 * usercb user callback for async calls, NULL for DOWAIT calls
1517 * usercb_data user supplied data pointer for async calls
1521 * -ETIMEDOUT timed out waiting for register ready or
1522 * command completion
1523 * >0 command indicated error, Status and Resp0-2 are
1529 * interrupt (DOASYNC)
1530 * process (DOWAIT or DOASYNC)
1531 ----------------------------------------------------------------*/
1533 hfa384x_dowrid(hfa384x_t *hw,
1537 unsigned int riddatalen,
1538 ctlx_cmdcb_t cmdcb, ctlx_usercb_t usercb, void *usercb_data)
1541 hfa384x_usbctlx_t *ctlx;
1543 ctlx = usbctlx_alloc();
1549 /* Initialize the command */
1550 ctlx->outbuf.wridreq.type = cpu_to_le16(HFA384x_USB_WRIDREQ);
1551 ctlx->outbuf.wridreq.frmlen = cpu_to_le16((sizeof
1552 (ctlx->outbuf.wridreq.rid) +
1553 riddatalen + 1) / 2);
1554 ctlx->outbuf.wridreq.rid = cpu_to_le16(rid);
1555 memcpy(ctlx->outbuf.wridreq.data, riddata, riddatalen);
1557 ctlx->outbufsize = sizeof(ctlx->outbuf.wridreq.type) +
1558 sizeof(ctlx->outbuf.wridreq.frmlen) +
1559 sizeof(ctlx->outbuf.wridreq.rid) + riddatalen;
1561 ctlx->reapable = mode;
1562 ctlx->cmdcb = cmdcb;
1563 ctlx->usercb = usercb;
1564 ctlx->usercb_data = usercb_data;
1566 /* Submit the CTLX */
1567 result = hfa384x_usbctlx_submit(hw, ctlx);
1570 } else if (mode == DOWAIT) {
1571 usbctlx_wrid_completor_t completor;
1572 hfa384x_cmdresult_t wridresult;
1574 result = hfa384x_usbctlx_complete_sync(hw,
1578 &ctlx->inbuf.wridresp,
1586 /*----------------------------------------------------------------
1589 * Constructs a readmem CTLX and issues it.
1591 * NOTE: Any changes to the 'post-submit' code in this function
1592 * need to be carried over to hfa384x_cbrmem() since the handling
1593 * is virtually identical.
1596 * hw device structure
1597 * mode DOWAIT or DOASYNC
1598 * page MAC address space page (CMD format)
1599 * offset MAC address space offset
1600 * data Ptr to data buffer to receive read
1601 * len Length of the data to read (max == 2048)
1602 * cmdcb command callback for async calls, NULL for DOWAIT calls
1603 * usercb user callback for async calls, NULL for DOWAIT calls
1604 * usercb_data user supplied data pointer for async calls
1608 * -ETIMEDOUT timed out waiting for register ready or
1609 * command completion
1610 * >0 command indicated error, Status and Resp0-2 are
1616 * interrupt (DOASYNC)
1617 * process (DOWAIT or DOASYNC)
1618 ----------------------------------------------------------------*/
1620 hfa384x_dormem(hfa384x_t *hw,
1626 ctlx_cmdcb_t cmdcb, ctlx_usercb_t usercb, void *usercb_data)
1629 hfa384x_usbctlx_t *ctlx;
1631 ctlx = usbctlx_alloc();
1637 /* Initialize the command */
1638 ctlx->outbuf.rmemreq.type = cpu_to_le16(HFA384x_USB_RMEMREQ);
1639 ctlx->outbuf.rmemreq.frmlen =
1640 cpu_to_le16(sizeof(ctlx->outbuf.rmemreq.offset) +
1641 sizeof(ctlx->outbuf.rmemreq.page) + len);
1642 ctlx->outbuf.rmemreq.offset = cpu_to_le16(offset);
1643 ctlx->outbuf.rmemreq.page = cpu_to_le16(page);
1645 ctlx->outbufsize = sizeof(ctlx->outbuf.rmemreq);
1647 pr_debug("type=0x%04x frmlen=%d offset=0x%04x page=0x%04x\n",
1648 ctlx->outbuf.rmemreq.type,
1649 ctlx->outbuf.rmemreq.frmlen,
1650 ctlx->outbuf.rmemreq.offset, ctlx->outbuf.rmemreq.page);
1652 pr_debug("pktsize=%zd\n", ROUNDUP64(sizeof(ctlx->outbuf.rmemreq)));
1654 ctlx->reapable = mode;
1655 ctlx->cmdcb = cmdcb;
1656 ctlx->usercb = usercb;
1657 ctlx->usercb_data = usercb_data;
1659 result = hfa384x_usbctlx_submit(hw, ctlx);
1662 } else if (mode == DOWAIT) {
1663 usbctlx_rmem_completor_t completor;
1666 hfa384x_usbctlx_complete_sync(hw, ctlx,
1669 &ctlx->inbuf.rmemresp, data,
1677 /*----------------------------------------------------------------
1680 * Constructs a writemem CTLX and issues it.
1682 * NOTE: Any changes to the 'post-submit' code in this function
1683 * need to be carried over to hfa384x_cbwmem() since the handling
1684 * is virtually identical.
1687 * hw device structure
1688 * mode DOWAIT or DOASYNC
1689 * page MAC address space page (CMD format)
1690 * offset MAC address space offset
1691 * data Ptr to data buffer containing write data
1692 * len Length of the data to read (max == 2048)
1693 * cmdcb command callback for async calls, NULL for DOWAIT calls
1694 * usercb user callback for async calls, NULL for DOWAIT calls
1695 * usercb_data user supplied data pointer for async calls.
1699 * -ETIMEDOUT timed out waiting for register ready or
1700 * command completion
1701 * >0 command indicated error, Status and Resp0-2 are
1707 * interrupt (DOWAIT)
1708 * process (DOWAIT or DOASYNC)
1709 ----------------------------------------------------------------*/
1711 hfa384x_dowmem(hfa384x_t *hw,
1717 ctlx_cmdcb_t cmdcb, ctlx_usercb_t usercb, void *usercb_data)
1720 hfa384x_usbctlx_t *ctlx;
1722 pr_debug("page=0x%04x offset=0x%04x len=%d\n", page, offset, len);
1724 ctlx = usbctlx_alloc();
1730 /* Initialize the command */
1731 ctlx->outbuf.wmemreq.type = cpu_to_le16(HFA384x_USB_WMEMREQ);
1732 ctlx->outbuf.wmemreq.frmlen =
1733 cpu_to_le16(sizeof(ctlx->outbuf.wmemreq.offset) +
1734 sizeof(ctlx->outbuf.wmemreq.page) + len);
1735 ctlx->outbuf.wmemreq.offset = cpu_to_le16(offset);
1736 ctlx->outbuf.wmemreq.page = cpu_to_le16(page);
1737 memcpy(ctlx->outbuf.wmemreq.data, data, len);
1739 ctlx->outbufsize = sizeof(ctlx->outbuf.wmemreq.type) +
1740 sizeof(ctlx->outbuf.wmemreq.frmlen) +
1741 sizeof(ctlx->outbuf.wmemreq.offset) +
1742 sizeof(ctlx->outbuf.wmemreq.page) + len;
1744 ctlx->reapable = mode;
1745 ctlx->cmdcb = cmdcb;
1746 ctlx->usercb = usercb;
1747 ctlx->usercb_data = usercb_data;
1749 result = hfa384x_usbctlx_submit(hw, ctlx);
1752 } else if (mode == DOWAIT) {
1753 usbctlx_wmem_completor_t completor;
1754 hfa384x_cmdresult_t wmemresult;
1756 result = hfa384x_usbctlx_complete_sync(hw,
1760 &ctlx->inbuf.wmemresp,
1768 /*----------------------------------------------------------------
1769 * hfa384x_drvr_commtallies
1771 * Send a commtallies inquiry to the MAC. Note that this is an async
1772 * call that will result in an info frame arriving sometime later.
1775 * hw device structure
1784 ----------------------------------------------------------------*/
1785 int hfa384x_drvr_commtallies(hfa384x_t *hw)
1787 hfa384x_metacmd_t cmd;
1789 cmd.cmd = HFA384x_CMDCODE_INQ;
1790 cmd.parm0 = HFA384x_IT_COMMTALLIES;
1794 hfa384x_docmd_async(hw, &cmd, NULL, NULL, NULL);
1799 /*----------------------------------------------------------------
1800 * hfa384x_drvr_disable
1802 * Issues the disable command to stop communications on one of
1803 * the MACs 'ports'. Only macport 0 is valid for stations.
1804 * APs may also disable macports 1-6. Only ports that have been
1805 * previously enabled may be disabled.
1808 * hw device structure
1809 * macport MAC port number (host order)
1813 * >0 f/w reported failure - f/w status code
1814 * <0 driver reported error (timeout|bad arg)
1820 ----------------------------------------------------------------*/
1821 int hfa384x_drvr_disable(hfa384x_t *hw, u16 macport)
1825 if ((!hw->isap && macport != 0) ||
1826 (hw->isap && !(macport <= HFA384x_PORTID_MAX)) ||
1827 !(hw->port_enabled[macport])) {
1830 result = hfa384x_cmd_disable(hw, macport);
1832 hw->port_enabled[macport] = 0;
1837 /*----------------------------------------------------------------
1838 * hfa384x_drvr_enable
1840 * Issues the enable command to enable communications on one of
1841 * the MACs 'ports'. Only macport 0 is valid for stations.
1842 * APs may also enable macports 1-6. Only ports that are currently
1843 * disabled may be enabled.
1846 * hw device structure
1847 * macport MAC port number
1851 * >0 f/w reported failure - f/w status code
1852 * <0 driver reported error (timeout|bad arg)
1858 ----------------------------------------------------------------*/
1859 int hfa384x_drvr_enable(hfa384x_t *hw, u16 macport)
1863 if ((!hw->isap && macport != 0) ||
1864 (hw->isap && !(macport <= HFA384x_PORTID_MAX)) ||
1865 (hw->port_enabled[macport])) {
1868 result = hfa384x_cmd_enable(hw, macport);
1870 hw->port_enabled[macport] = 1;
1875 /*----------------------------------------------------------------
1876 * hfa384x_drvr_flashdl_enable
1878 * Begins the flash download state. Checks to see that we're not
1879 * already in a download state and that a port isn't enabled.
1880 * Sets the download state and retrieves the flash download
1881 * buffer location, buffer size, and timeout length.
1884 * hw device structure
1888 * >0 f/w reported error - f/w status code
1889 * <0 driver reported error
1895 ----------------------------------------------------------------*/
1896 int hfa384x_drvr_flashdl_enable(hfa384x_t *hw)
1901 /* Check that a port isn't active */
1902 for (i = 0; i < HFA384x_PORTID_MAX; i++) {
1903 if (hw->port_enabled[i]) {
1904 pr_debug("called when port enabled.\n");
1909 /* Check that we're not already in a download state */
1910 if (hw->dlstate != HFA384x_DLSTATE_DISABLED)
1913 /* Retrieve the buffer loc&size and timeout */
1914 result = hfa384x_drvr_getconfig(hw, HFA384x_RID_DOWNLOADBUFFER,
1915 &(hw->bufinfo), sizeof(hw->bufinfo));
1919 hw->bufinfo.page = le16_to_cpu(hw->bufinfo.page);
1920 hw->bufinfo.offset = le16_to_cpu(hw->bufinfo.offset);
1921 hw->bufinfo.len = le16_to_cpu(hw->bufinfo.len);
1922 result = hfa384x_drvr_getconfig16(hw, HFA384x_RID_MAXLOADTIME,
1927 hw->dltimeout = le16_to_cpu(hw->dltimeout);
1929 pr_debug("flashdl_enable\n");
1931 hw->dlstate = HFA384x_DLSTATE_FLASHENABLED;
1936 /*----------------------------------------------------------------
1937 * hfa384x_drvr_flashdl_disable
1939 * Ends the flash download state. Note that this will cause the MAC
1940 * firmware to restart.
1943 * hw device structure
1947 * >0 f/w reported error - f/w status code
1948 * <0 driver reported error
1954 ----------------------------------------------------------------*/
1955 int hfa384x_drvr_flashdl_disable(hfa384x_t *hw)
1957 /* Check that we're already in the download state */
1958 if (hw->dlstate != HFA384x_DLSTATE_FLASHENABLED)
1961 pr_debug("flashdl_enable\n");
1963 /* There isn't much we can do at this point, so I don't */
1964 /* bother w/ the return value */
1965 hfa384x_cmd_download(hw, HFA384x_PROGMODE_DISABLE, 0, 0, 0);
1966 hw->dlstate = HFA384x_DLSTATE_DISABLED;
1971 /*----------------------------------------------------------------
1972 * hfa384x_drvr_flashdl_write
1974 * Performs a FLASH download of a chunk of data. First checks to see
1975 * that we're in the FLASH download state, then sets the download
1976 * mode, uses the aux functions to 1) copy the data to the flash
1977 * buffer, 2) sets the download 'write flash' mode, 3) readback and
1978 * compare. Lather rinse, repeat as many times an necessary to get
1979 * all the given data into flash.
1980 * When all data has been written using this function (possibly
1981 * repeatedly), call drvr_flashdl_disable() to end the download state
1982 * and restart the MAC.
1985 * hw device structure
1986 * daddr Card address to write to. (host order)
1987 * buf Ptr to data to write.
1988 * len Length of data (host order).
1992 * >0 f/w reported error - f/w status code
1993 * <0 driver reported error
1999 ----------------------------------------------------------------*/
2000 int hfa384x_drvr_flashdl_write(hfa384x_t *hw, u32 daddr, void *buf, u32 len)
2017 pr_debug("daddr=0x%08x len=%d\n", daddr, len);
2019 /* Check that we're in the flash download state */
2020 if (hw->dlstate != HFA384x_DLSTATE_FLASHENABLED)
2023 printk(KERN_INFO "Download %d bytes to flash @0x%06x\n", len, daddr);
2025 /* Convert to flat address for arithmetic */
2026 /* NOTE: dlbuffer RID stores the address in AUX format */
2028 HFA384x_ADDR_AUX_MKFLAT(hw->bufinfo.page, hw->bufinfo.offset);
2029 pr_debug("dlbuf.page=0x%04x dlbuf.offset=0x%04x dlbufaddr=0x%08x\n",
2030 hw->bufinfo.page, hw->bufinfo.offset, dlbufaddr);
2033 printk(KERN_WARNING "dlbuf@0x%06lx len=%d to=%d\n", dlbufaddr,
2034 hw->bufinfo.len, hw->dltimeout);
2036 /* Calculations to determine how many fills of the dlbuffer to do
2037 * and how many USB wmemreq's to do for each fill. At this point
2038 * in time, the dlbuffer size and the wmemreq size are the same.
2039 * Therefore, nwrites should always be 1. The extra complexity
2040 * here is a hedge against future changes.
2043 /* Figure out how many times to do the flash programming */
2044 nburns = len / hw->bufinfo.len;
2045 nburns += (len % hw->bufinfo.len) ? 1 : 0;
2047 /* For each flash program cycle, how many USB wmemreq's are needed? */
2048 nwrites = hw->bufinfo.len / HFA384x_USB_RWMEM_MAXLEN;
2049 nwrites += (hw->bufinfo.len % HFA384x_USB_RWMEM_MAXLEN) ? 1 : 0;
2052 for (i = 0; i < nburns; i++) {
2053 /* Get the dest address and len */
2054 burnlen = (len - (hw->bufinfo.len * i)) > hw->bufinfo.len ?
2055 hw->bufinfo.len : (len - (hw->bufinfo.len * i));
2056 burndaddr = daddr + (hw->bufinfo.len * i);
2057 burnlo = HFA384x_ADDR_CMD_MKOFF(burndaddr);
2058 burnhi = HFA384x_ADDR_CMD_MKPAGE(burndaddr);
2060 printk(KERN_INFO "Writing %d bytes to flash @0x%06x\n",
2061 burnlen, burndaddr);
2063 /* Set the download mode */
2064 result = hfa384x_cmd_download(hw, HFA384x_PROGMODE_NV,
2065 burnlo, burnhi, burnlen);
2067 printk(KERN_ERR "download(NV,lo=%x,hi=%x,len=%x) "
2068 "cmd failed, result=%d. Aborting d/l\n",
2069 burnlo, burnhi, burnlen, result);
2073 /* copy the data to the flash download buffer */
2074 for (j = 0; j < nwrites; j++) {
2076 (i * hw->bufinfo.len) +
2077 (j * HFA384x_USB_RWMEM_MAXLEN);
2079 writepage = HFA384x_ADDR_CMD_MKPAGE(dlbufaddr +
2080 (j * HFA384x_USB_RWMEM_MAXLEN));
2081 writeoffset = HFA384x_ADDR_CMD_MKOFF(dlbufaddr +
2082 (j * HFA384x_USB_RWMEM_MAXLEN));
2084 writelen = burnlen - (j * HFA384x_USB_RWMEM_MAXLEN);
2085 writelen = writelen > HFA384x_USB_RWMEM_MAXLEN ?
2086 HFA384x_USB_RWMEM_MAXLEN : writelen;
2088 result = hfa384x_dowmem_wait(hw,
2091 writebuf, writelen);
2094 /* set the download 'write flash' mode */
2095 result = hfa384x_cmd_download(hw,
2096 HFA384x_PROGMODE_NVWRITE,
2100 "download(NVWRITE,lo=%x,hi=%x,len=%x) "
2101 "cmd failed, result=%d. Aborting d/l\n",
2102 burnlo, burnhi, burnlen, result);
2106 /* TODO: We really should do a readback and compare. */
2111 /* Leave the firmware in the 'post-prog' mode. flashdl_disable will */
2112 /* actually disable programming mode. Remember, that will cause the */
2113 /* the firmware to effectively reset itself. */
2118 /*----------------------------------------------------------------
2119 * hfa384x_drvr_getconfig
2121 * Performs the sequence necessary to read a config/info item.
2124 * hw device structure
2125 * rid config/info record id (host order)
2126 * buf host side record buffer. Upon return it will
2127 * contain the body portion of the record (minus the
2129 * len buffer length (in bytes, should match record length)
2133 * >0 f/w reported error - f/w status code
2134 * <0 driver reported error
2135 * -ENODATA length mismatch between argument and retrieved
2142 ----------------------------------------------------------------*/
2143 int hfa384x_drvr_getconfig(hfa384x_t *hw, u16 rid, void *buf, u16 len)
2147 result = hfa384x_dorrid_wait(hw, rid, buf, len);
2152 /*----------------------------------------------------------------
2153 * hfa384x_drvr_getconfig_async
2155 * Performs the sequence necessary to perform an async read of
2156 * of a config/info item.
2159 * hw device structure
2160 * rid config/info record id (host order)
2161 * buf host side record buffer. Upon return it will
2162 * contain the body portion of the record (minus the
2164 * len buffer length (in bytes, should match record length)
2165 * cbfn caller supplied callback, called when the command
2166 * is done (successful or not).
2167 * cbfndata pointer to some caller supplied data that will be
2168 * passed in as an argument to the cbfn.
2171 * nothing the cbfn gets a status argument identifying if
2174 * Queues an hfa384x_usbcmd_t for subsequent execution.
2178 ----------------------------------------------------------------*/
2180 hfa384x_drvr_getconfig_async(hfa384x_t *hw,
2181 u16 rid, ctlx_usercb_t usercb, void *usercb_data)
2183 return hfa384x_dorrid_async(hw, rid, NULL, 0,
2184 hfa384x_cb_rrid, usercb, usercb_data);
2187 /*----------------------------------------------------------------
2188 * hfa384x_drvr_setconfig_async
2190 * Performs the sequence necessary to write a config/info item.
2193 * hw device structure
2194 * rid config/info record id (in host order)
2195 * buf host side record buffer
2196 * len buffer length (in bytes)
2197 * usercb completion callback
2198 * usercb_data completion callback argument
2202 * >0 f/w reported error - f/w status code
2203 * <0 driver reported error
2209 ----------------------------------------------------------------*/
2211 hfa384x_drvr_setconfig_async(hfa384x_t *hw,
2214 u16 len, ctlx_usercb_t usercb, void *usercb_data)
2216 return hfa384x_dowrid_async(hw, rid, buf, len,
2217 hfa384x_cb_status, usercb, usercb_data);
2220 /*----------------------------------------------------------------
2221 * hfa384x_drvr_ramdl_disable
2223 * Ends the ram download state.
2226 * hw device structure
2230 * >0 f/w reported error - f/w status code
2231 * <0 driver reported error
2237 ----------------------------------------------------------------*/
2238 int hfa384x_drvr_ramdl_disable(hfa384x_t *hw)
2240 /* Check that we're already in the download state */
2241 if (hw->dlstate != HFA384x_DLSTATE_RAMENABLED)
2244 pr_debug("ramdl_disable()\n");
2246 /* There isn't much we can do at this point, so I don't */
2247 /* bother w/ the return value */
2248 hfa384x_cmd_download(hw, HFA384x_PROGMODE_DISABLE, 0, 0, 0);
2249 hw->dlstate = HFA384x_DLSTATE_DISABLED;
2254 /*----------------------------------------------------------------
2255 * hfa384x_drvr_ramdl_enable
2257 * Begins the ram download state. Checks to see that we're not
2258 * already in a download state and that a port isn't enabled.
2259 * Sets the download state and calls cmd_download with the
2260 * ENABLE_VOLATILE subcommand and the exeaddr argument.
2263 * hw device structure
2264 * exeaddr the card execution address that will be
2265 * jumped to when ramdl_disable() is called
2270 * >0 f/w reported error - f/w status code
2271 * <0 driver reported error
2277 ----------------------------------------------------------------*/
2278 int hfa384x_drvr_ramdl_enable(hfa384x_t *hw, u32 exeaddr)
2285 /* Check that a port isn't active */
2286 for (i = 0; i < HFA384x_PORTID_MAX; i++) {
2287 if (hw->port_enabled[i]) {
2289 "Can't download with a macport enabled.\n");
2294 /* Check that we're not already in a download state */
2295 if (hw->dlstate != HFA384x_DLSTATE_DISABLED) {
2296 printk(KERN_ERR "Download state not disabled.\n");
2300 pr_debug("ramdl_enable, exeaddr=0x%08x\n", exeaddr);
2302 /* Call the download(1,addr) function */
2303 lowaddr = HFA384x_ADDR_CMD_MKOFF(exeaddr);
2304 hiaddr = HFA384x_ADDR_CMD_MKPAGE(exeaddr);
2306 result = hfa384x_cmd_download(hw, HFA384x_PROGMODE_RAM,
2307 lowaddr, hiaddr, 0);
2310 /* Set the download state */
2311 hw->dlstate = HFA384x_DLSTATE_RAMENABLED;
2313 pr_debug("cmd_download(0x%04x, 0x%04x) failed, result=%d.\n",
2314 lowaddr, hiaddr, result);
2320 /*----------------------------------------------------------------
2321 * hfa384x_drvr_ramdl_write
2323 * Performs a RAM download of a chunk of data. First checks to see
2324 * that we're in the RAM download state, then uses the [read|write]mem USB
2325 * commands to 1) copy the data, 2) readback and compare. The download
2326 * state is unaffected. When all data has been written using
2327 * this function, call drvr_ramdl_disable() to end the download state
2328 * and restart the MAC.
2331 * hw device structure
2332 * daddr Card address to write to. (host order)
2333 * buf Ptr to data to write.
2334 * len Length of data (host order).
2338 * >0 f/w reported error - f/w status code
2339 * <0 driver reported error
2345 ----------------------------------------------------------------*/
2346 int hfa384x_drvr_ramdl_write(hfa384x_t *hw, u32 daddr, void *buf, u32 len)
2357 /* Check that we're in the ram download state */
2358 if (hw->dlstate != HFA384x_DLSTATE_RAMENABLED)
2361 printk(KERN_INFO "Writing %d bytes to ram @0x%06x\n", len, daddr);
2363 /* How many dowmem calls? */
2364 nwrites = len / HFA384x_USB_RWMEM_MAXLEN;
2365 nwrites += len % HFA384x_USB_RWMEM_MAXLEN ? 1 : 0;
2367 /* Do blocking wmem's */
2368 for (i = 0; i < nwrites; i++) {
2369 /* make address args */
2370 curraddr = daddr + (i * HFA384x_USB_RWMEM_MAXLEN);
2371 currpage = HFA384x_ADDR_CMD_MKPAGE(curraddr);
2372 curroffset = HFA384x_ADDR_CMD_MKOFF(curraddr);
2373 currlen = len - (i * HFA384x_USB_RWMEM_MAXLEN);
2374 if (currlen > HFA384x_USB_RWMEM_MAXLEN)
2375 currlen = HFA384x_USB_RWMEM_MAXLEN;
2377 /* Do blocking ctlx */
2378 result = hfa384x_dowmem_wait(hw,
2382 (i * HFA384x_USB_RWMEM_MAXLEN),
2388 /* TODO: We really should have a readback. */
2394 /*----------------------------------------------------------------
2395 * hfa384x_drvr_readpda
2397 * Performs the sequence to read the PDA space. Note there is no
2398 * drvr_writepda() function. Writing a PDA is
2399 * generally implemented by a calling component via calls to
2400 * cmd_download and writing to the flash download buffer via the
2404 * hw device structure
2405 * buf buffer to store PDA in
2410 * >0 f/w reported error - f/w status code
2411 * <0 driver reported error
2412 * -ETIMEDOUT timout waiting for the cmd regs to become
2413 * available, or waiting for the control reg
2414 * to indicate the Aux port is enabled.
2415 * -ENODATA the buffer does NOT contain a valid PDA.
2416 * Either the card PDA is bad, or the auxdata
2417 * reads are giving us garbage.
2423 * process or non-card interrupt.
2424 ----------------------------------------------------------------*/
2425 int hfa384x_drvr_readpda(hfa384x_t *hw, void *buf, unsigned int len)
2431 int currpdr = 0; /* word offset of the current pdr */
2433 u16 pdrlen; /* pdr length in bytes, host order */
2434 u16 pdrcode; /* pdr code, host order */
2442 HFA3842_PDA_BASE, 0}, {
2443 HFA3841_PDA_BASE, 0}, {
2444 HFA3841_PDA_BOGUS_BASE, 0}
2447 /* Read the pda from each known address. */
2448 for (i = 0; i < ARRAY_SIZE(pdaloc); i++) {
2450 currpage = HFA384x_ADDR_CMD_MKPAGE(pdaloc[i].cardaddr);
2451 curroffset = HFA384x_ADDR_CMD_MKOFF(pdaloc[i].cardaddr);
2453 /* units of bytes */
2454 result = hfa384x_dormem_wait(hw, currpage, curroffset, buf,
2459 "Read from index %zd failed, continuing\n", i);
2463 /* Test for garbage */
2464 pdaok = 1; /* initially assume good */
2466 while (pdaok && morepdrs) {
2467 pdrlen = le16_to_cpu(pda[currpdr]) * 2;
2468 pdrcode = le16_to_cpu(pda[currpdr + 1]);
2469 /* Test the record length */
2470 if (pdrlen > HFA384x_PDR_LEN_MAX || pdrlen == 0) {
2471 printk(KERN_ERR "pdrlen invalid=%d\n", pdrlen);
2476 if (!hfa384x_isgood_pdrcode(pdrcode)) {
2477 printk(KERN_ERR "pdrcode invalid=%d\n",
2482 /* Test for completion */
2483 if (pdrcode == HFA384x_PDR_END_OF_PDA)
2486 /* Move to the next pdr (if necessary) */
2488 /* note the access to pda[], need words here */
2489 currpdr += le16_to_cpu(pda[currpdr]) + 1;
2494 "PDA Read from 0x%08x in %s space.\n",
2496 pdaloc[i].auxctl == 0 ? "EXTDS" :
2497 pdaloc[i].auxctl == 1 ? "NV" :
2498 pdaloc[i].auxctl == 2 ? "PHY" :
2499 pdaloc[i].auxctl == 3 ? "ICSRAM" :
2504 result = pdaok ? 0 : -ENODATA;
2507 pr_debug("Failure: pda is not okay\n");
2512 /*----------------------------------------------------------------
2513 * hfa384x_drvr_setconfig
2515 * Performs the sequence necessary to write a config/info item.
2518 * hw device structure
2519 * rid config/info record id (in host order)
2520 * buf host side record buffer
2521 * len buffer length (in bytes)
2525 * >0 f/w reported error - f/w status code
2526 * <0 driver reported error
2532 ----------------------------------------------------------------*/
2533 int hfa384x_drvr_setconfig(hfa384x_t *hw, u16 rid, void *buf, u16 len)
2535 return hfa384x_dowrid_wait(hw, rid, buf, len);
2538 /*----------------------------------------------------------------
2539 * hfa384x_drvr_start
2541 * Issues the MAC initialize command, sets up some data structures,
2542 * and enables the interrupts. After this function completes, the
2543 * low-level stuff should be ready for any/all commands.
2546 * hw device structure
2549 * >0 f/w reported error - f/w status code
2550 * <0 driver reported error
2556 ----------------------------------------------------------------*/
2558 int hfa384x_drvr_start(hfa384x_t *hw)
2560 int result, result1, result2;
2565 /* Clear endpoint stalls - but only do this if the endpoint
2566 * is showing a stall status. Some prism2 cards seem to behave
2567 * badly if a clear_halt is called when the endpoint is already
2571 usb_get_status(hw->usb, USB_RECIP_ENDPOINT, hw->endp_in, &status);
2573 printk(KERN_ERR "Cannot get bulk in endpoint status.\n");
2576 if ((status == 1) && usb_clear_halt(hw->usb, hw->endp_in))
2577 printk(KERN_ERR "Failed to reset bulk in endpoint.\n");
2580 usb_get_status(hw->usb, USB_RECIP_ENDPOINT, hw->endp_out, &status);
2582 printk(KERN_ERR "Cannot get bulk out endpoint status.\n");
2585 if ((status == 1) && usb_clear_halt(hw->usb, hw->endp_out))
2586 printk(KERN_ERR "Failed to reset bulk out endpoint.\n");
2588 /* Synchronous unlink, in case we're trying to restart the driver */
2589 usb_kill_urb(&hw->rx_urb);
2591 /* Post the IN urb */
2592 result = submit_rx_urb(hw, GFP_KERNEL);
2595 "Fatal, failed to submit RX URB, result=%d\n", result);
2599 /* Call initialize twice, with a 1 second sleep in between.
2600 * This is a nasty work-around since many prism2 cards seem to
2601 * need time to settle after an init from cold. The second
2602 * call to initialize in theory is not necessary - but we call
2603 * it anyway as a double insurance policy:
2604 * 1) If the first init should fail, the second may well succeed
2605 * and the card can still be used
2606 * 2) It helps ensures all is well with the card after the first
2607 * init and settle time.
2609 result1 = hfa384x_cmd_initialize(hw);
2611 result = result2 = hfa384x_cmd_initialize(hw);
2615 "cmd_initialize() failed on two attempts, results %d and %d\n",
2617 usb_kill_urb(&hw->rx_urb);
2620 pr_debug("First cmd_initialize() failed (result %d),\n",
2622 pr_debug("but second attempt succeeded. All should be ok\n");
2624 } else if (result2 != 0) {
2625 printk(KERN_WARNING "First cmd_initialize() succeeded, but second attempt failed (result=%d)\n",
2628 "Most likely the card will be functional\n");
2632 hw->state = HFA384x_STATE_RUNNING;
2638 /*----------------------------------------------------------------
2641 * Shuts down the MAC to the point where it is safe to unload the
2642 * driver. Any subsystem that may be holding a data or function
2643 * ptr into the driver must be cleared/deinitialized.
2646 * hw device structure
2649 * >0 f/w reported error - f/w status code
2650 * <0 driver reported error
2656 ----------------------------------------------------------------*/
2657 int hfa384x_drvr_stop(hfa384x_t *hw)
2664 /* There's no need for spinlocks here. The USB "disconnect"
2665 * function sets this "removed" flag and then calls us.
2667 if (!hw->wlandev->hwremoved) {
2668 /* Call initialize to leave the MAC in its 'reset' state */
2669 hfa384x_cmd_initialize(hw);
2671 /* Cancel the rxurb */
2672 usb_kill_urb(&hw->rx_urb);
2675 hw->link_status = HFA384x_LINK_NOTCONNECTED;
2676 hw->state = HFA384x_STATE_INIT;
2678 del_timer_sync(&hw->commsqual_timer);
2680 /* Clear all the port status */
2681 for (i = 0; i < HFA384x_NUMPORTS_MAX; i++)
2682 hw->port_enabled[i] = 0;
2687 /*----------------------------------------------------------------
2688 * hfa384x_drvr_txframe
2690 * Takes a frame from prism2sta and queues it for transmission.
2693 * hw device structure
2694 * skb packet buffer struct. Contains an 802.11
2696 * p80211_hdr points to the 802.11 header for the packet.
2698 * 0 Success and more buffs available
2699 * 1 Success but no more buffs
2700 * 2 Allocation failure
2701 * 4 Buffer full or queue busy
2707 ----------------------------------------------------------------*/
2708 int hfa384x_drvr_txframe(hfa384x_t *hw, struct sk_buff *skb,
2709 union p80211_hdr *p80211_hdr,
2710 struct p80211_metawep *p80211_wep)
2712 int usbpktlen = sizeof(hfa384x_tx_frame_t);
2717 if (hw->tx_urb.status == -EINPROGRESS) {
2718 printk(KERN_WARNING "TX URB already in use\n");
2723 /* Build Tx frame structure */
2724 /* Set up the control field */
2725 memset(&hw->txbuff.txfrm.desc, 0, sizeof(hw->txbuff.txfrm.desc));
2727 /* Setup the usb type field */
2728 hw->txbuff.type = cpu_to_le16(HFA384x_USB_TXFRM);
2730 /* Set up the sw_support field to identify this frame */
2731 hw->txbuff.txfrm.desc.sw_support = 0x0123;
2733 /* Tx complete and Tx exception disable per dleach. Might be causing
2736 /* #define DOEXC SLP -- doboth breaks horribly under load, doexc less so. */
2738 hw->txbuff.txfrm.desc.tx_control =
2739 HFA384x_TX_MACPORT_SET(0) | HFA384x_TX_STRUCTYPE_SET(1) |
2740 HFA384x_TX_TXEX_SET(1) | HFA384x_TX_TXOK_SET(1);
2741 #elif defined(DOEXC)
2742 hw->txbuff.txfrm.desc.tx_control =
2743 HFA384x_TX_MACPORT_SET(0) | HFA384x_TX_STRUCTYPE_SET(1) |
2744 HFA384x_TX_TXEX_SET(1) | HFA384x_TX_TXOK_SET(0);
2746 hw->txbuff.txfrm.desc.tx_control =
2747 HFA384x_TX_MACPORT_SET(0) | HFA384x_TX_STRUCTYPE_SET(1) |
2748 HFA384x_TX_TXEX_SET(0) | HFA384x_TX_TXOK_SET(0);
2750 hw->txbuff.txfrm.desc.tx_control =
2751 cpu_to_le16(hw->txbuff.txfrm.desc.tx_control);
2753 /* copy the header over to the txdesc */
2754 memcpy(&(hw->txbuff.txfrm.desc.frame_control), p80211_hdr,
2755 sizeof(union p80211_hdr));
2757 /* if we're using host WEP, increase size by IV+ICV */
2758 if (p80211_wep->data) {
2759 hw->txbuff.txfrm.desc.data_len = cpu_to_le16(skb->len + 8);
2762 hw->txbuff.txfrm.desc.data_len = cpu_to_le16(skb->len);
2765 usbpktlen += skb->len;
2767 /* copy over the WEP IV if we are using host WEP */
2768 ptr = hw->txbuff.txfrm.data;
2769 if (p80211_wep->data) {
2770 memcpy(ptr, p80211_wep->iv, sizeof(p80211_wep->iv));
2771 ptr += sizeof(p80211_wep->iv);
2772 memcpy(ptr, p80211_wep->data, skb->len);
2774 memcpy(ptr, skb->data, skb->len);
2776 /* copy over the packet data */
2779 /* copy over the WEP ICV if we are using host WEP */
2780 if (p80211_wep->data)
2781 memcpy(ptr, p80211_wep->icv, sizeof(p80211_wep->icv));
2783 /* Send the USB packet */
2784 usb_fill_bulk_urb(&(hw->tx_urb), hw->usb,
2786 &(hw->txbuff), ROUNDUP64(usbpktlen),
2787 hfa384x_usbout_callback, hw->wlandev);
2788 hw->tx_urb.transfer_flags |= USB_QUEUE_BULK;
2791 ret = submit_tx_urb(hw, &hw->tx_urb, GFP_ATOMIC);
2793 printk(KERN_ERR "submit_tx_urb() failed, error=%d\n", ret);
2801 void hfa384x_tx_timeout(wlandevice_t *wlandev)
2803 hfa384x_t *hw = wlandev->priv;
2804 unsigned long flags;
2806 spin_lock_irqsave(&hw->ctlxq.lock, flags);
2808 if (!hw->wlandev->hwremoved) {
2811 sched = !test_and_set_bit(WORK_TX_HALT, &hw->usb_flags);
2812 sched |= !test_and_set_bit(WORK_RX_HALT, &hw->usb_flags);
2814 schedule_work(&hw->usb_work);
2817 spin_unlock_irqrestore(&hw->ctlxq.lock, flags);
2820 /*----------------------------------------------------------------
2821 * hfa384x_usbctlx_reaper_task
2823 * Tasklet to delete dead CTLX objects
2826 * data ptr to a hfa384x_t
2832 ----------------------------------------------------------------*/
2833 static void hfa384x_usbctlx_reaper_task(unsigned long data)
2835 hfa384x_t *hw = (hfa384x_t *) data;
2836 struct list_head *entry;
2837 struct list_head *temp;
2838 unsigned long flags;
2840 spin_lock_irqsave(&hw->ctlxq.lock, flags);
2842 /* This list is guaranteed to be empty if someone
2843 * has unplugged the adapter.
2845 list_for_each_safe(entry, temp, &hw->ctlxq.reapable) {
2846 hfa384x_usbctlx_t *ctlx;
2848 ctlx = list_entry(entry, hfa384x_usbctlx_t, list);
2849 list_del(&ctlx->list);
2853 spin_unlock_irqrestore(&hw->ctlxq.lock, flags);
2857 /*----------------------------------------------------------------
2858 * hfa384x_usbctlx_completion_task
2860 * Tasklet to call completion handlers for returned CTLXs
2863 * data ptr to hfa384x_t
2870 ----------------------------------------------------------------*/
2871 static void hfa384x_usbctlx_completion_task(unsigned long data)
2873 hfa384x_t *hw = (hfa384x_t *) data;
2874 struct list_head *entry;
2875 struct list_head *temp;
2876 unsigned long flags;
2880 spin_lock_irqsave(&hw->ctlxq.lock, flags);
2882 /* This list is guaranteed to be empty if someone
2883 * has unplugged the adapter ...
2885 list_for_each_safe(entry, temp, &hw->ctlxq.completing) {
2886 hfa384x_usbctlx_t *ctlx;
2888 ctlx = list_entry(entry, hfa384x_usbctlx_t, list);
2890 /* Call the completion function that this
2891 * command was assigned, assuming it has one.
2893 if (ctlx->cmdcb != NULL) {
2894 spin_unlock_irqrestore(&hw->ctlxq.lock, flags);
2895 ctlx->cmdcb(hw, ctlx);
2896 spin_lock_irqsave(&hw->ctlxq.lock, flags);
2898 /* Make sure we don't try and complete
2899 * this CTLX more than once!
2903 /* Did someone yank the adapter out
2904 * while our list was (briefly) unlocked?
2906 if (hw->wlandev->hwremoved) {
2913 * "Reapable" CTLXs are ones which don't have any
2914 * threads waiting for them to die. Hence they must
2915 * be delivered to The Reaper!
2917 if (ctlx->reapable) {
2918 /* Move the CTLX off the "completing" list (hopefully)
2919 * on to the "reapable" list where the reaper task
2920 * can find it. And "reapable" means that this CTLX
2921 * isn't sitting on a wait-queue somewhere.
2923 list_move_tail(&ctlx->list, &hw->ctlxq.reapable);
2927 complete(&ctlx->done);
2929 spin_unlock_irqrestore(&hw->ctlxq.lock, flags);
2932 tasklet_schedule(&hw->reaper_bh);
2935 /*----------------------------------------------------------------
2936 * unlocked_usbctlx_cancel_async
2938 * Mark the CTLX dead asynchronously, and ensure that the
2939 * next command on the queue is run afterwards.
2942 * hw ptr to the hfa384x_t structure
2943 * ctlx ptr to a CTLX structure
2946 * 0 the CTLX's URB is inactive
2947 * -EINPROGRESS the URB is currently being unlinked
2950 * Either process or interrupt, but presumably interrupt
2951 ----------------------------------------------------------------*/
2952 static int unlocked_usbctlx_cancel_async(hfa384x_t *hw,
2953 hfa384x_usbctlx_t *ctlx)
2958 * Try to delete the URB containing our request packet.
2959 * If we succeed, then its completion handler will be
2960 * called with a status of -ECONNRESET.
2962 hw->ctlx_urb.transfer_flags |= URB_ASYNC_UNLINK;
2963 ret = usb_unlink_urb(&hw->ctlx_urb);
2965 if (ret != -EINPROGRESS) {
2967 * The OUT URB had either already completed
2968 * or was still in the pending queue, so the
2969 * URB's completion function will not be called.
2970 * We will have to complete the CTLX ourselves.
2972 ctlx->state = CTLX_REQ_FAILED;
2973 unlocked_usbctlx_complete(hw, ctlx);
2980 /*----------------------------------------------------------------
2981 * unlocked_usbctlx_complete
2983 * A CTLX has completed. It may have been successful, it may not
2984 * have been. At this point, the CTLX should be quiescent. The URBs
2985 * aren't active and the timers should have been stopped.
2987 * The CTLX is migrated to the "completing" queue, and the completing
2988 * tasklet is scheduled.
2991 * hw ptr to a hfa384x_t structure
2992 * ctlx ptr to a ctlx structure
3000 * Either, assume interrupt
3001 ----------------------------------------------------------------*/
3002 static void unlocked_usbctlx_complete(hfa384x_t *hw, hfa384x_usbctlx_t *ctlx)
3004 /* Timers have been stopped, and ctlx should be in
3005 * a terminal state. Retire it from the "active"
3008 list_move_tail(&ctlx->list, &hw->ctlxq.completing);
3009 tasklet_schedule(&hw->completion_bh);
3011 switch (ctlx->state) {
3013 case CTLX_REQ_FAILED:
3014 /* This are the correct terminating states. */
3018 printk(KERN_ERR "CTLX[%d] not in a terminating state(%s)\n",
3019 le16_to_cpu(ctlx->outbuf.type), ctlxstr(ctlx->state));
3024 /*----------------------------------------------------------------
3025 * hfa384x_usbctlxq_run
3027 * Checks to see if the head item is running. If not, starts it.
3030 * hw ptr to hfa384x_t
3039 ----------------------------------------------------------------*/
3040 static void hfa384x_usbctlxq_run(hfa384x_t *hw)
3042 unsigned long flags;
3045 spin_lock_irqsave(&hw->ctlxq.lock, flags);
3047 /* Only one active CTLX at any one time, because there's no
3048 * other (reliable) way to match the response URB to the
3051 * Don't touch any of these CTLXs if the hardware
3052 * has been removed or the USB subsystem is stalled.
3054 if (!list_empty(&hw->ctlxq.active) ||
3055 test_bit(WORK_TX_HALT, &hw->usb_flags) || hw->wlandev->hwremoved)
3058 while (!list_empty(&hw->ctlxq.pending)) {
3059 hfa384x_usbctlx_t *head;
3062 /* This is the first pending command */
3063 head = list_entry(hw->ctlxq.pending.next,
3064 hfa384x_usbctlx_t, list);
3066 /* We need to split this off to avoid a race condition */
3067 list_move_tail(&head->list, &hw->ctlxq.active);
3069 /* Fill the out packet */
3070 usb_fill_bulk_urb(&(hw->ctlx_urb), hw->usb,
3072 &(head->outbuf), ROUNDUP64(head->outbufsize),
3073 hfa384x_ctlxout_callback, hw);
3074 hw->ctlx_urb.transfer_flags |= USB_QUEUE_BULK;
3076 /* Now submit the URB and update the CTLX's state */
3077 result = SUBMIT_URB(&hw->ctlx_urb, GFP_ATOMIC);
3079 /* This CTLX is now running on the active queue */
3080 head->state = CTLX_REQ_SUBMITTED;
3082 /* Start the OUT wait timer */
3083 hw->req_timer_done = 0;
3084 hw->reqtimer.expires = jiffies + HZ;
3085 add_timer(&hw->reqtimer);
3087 /* Start the IN wait timer */
3088 hw->resp_timer_done = 0;
3089 hw->resptimer.expires = jiffies + 2 * HZ;
3090 add_timer(&hw->resptimer);
3095 if (result == -EPIPE) {
3096 /* The OUT pipe needs resetting, so put
3097 * this CTLX back in the "pending" queue
3098 * and schedule a reset ...
3101 "%s tx pipe stalled: requesting reset\n",
3102 hw->wlandev->netdev->name);
3103 list_move(&head->list, &hw->ctlxq.pending);
3104 set_bit(WORK_TX_HALT, &hw->usb_flags);
3105 schedule_work(&hw->usb_work);
3109 if (result == -ESHUTDOWN) {
3110 printk(KERN_WARNING "%s urb shutdown!\n",
3111 hw->wlandev->netdev->name);
3115 printk(KERN_ERR "Failed to submit CTLX[%d]: error=%d\n",
3116 le16_to_cpu(head->outbuf.type), result);
3117 unlocked_usbctlx_complete(hw, head);
3121 spin_unlock_irqrestore(&hw->ctlxq.lock, flags);
3124 /*----------------------------------------------------------------
3125 * hfa384x_usbin_callback
3127 * Callback for URBs on the BULKIN endpoint.
3130 * urb ptr to the completed urb
3139 ----------------------------------------------------------------*/
3140 static void hfa384x_usbin_callback(struct urb *urb)
3142 wlandevice_t *wlandev = urb->context;
3144 hfa384x_usbin_t *usbin = (hfa384x_usbin_t *) urb->transfer_buffer;
3145 struct sk_buff *skb = NULL;
3156 if (!wlandev || !wlandev->netdev || wlandev->hwremoved)
3163 skb = hw->rx_urb_skb;
3164 BUG_ON(!skb || (skb->data != urb->transfer_buffer));
3166 hw->rx_urb_skb = NULL;
3168 /* Check for error conditions within the URB */
3169 switch (urb->status) {
3173 /* Check for short packet */
3174 if (urb->actual_length == 0) {
3175 ++(wlandev->linux_stats.rx_errors);
3176 ++(wlandev->linux_stats.rx_length_errors);
3182 printk(KERN_WARNING "%s rx pipe stalled: requesting reset\n",
3183 wlandev->netdev->name);
3184 if (!test_and_set_bit(WORK_RX_HALT, &hw->usb_flags))
3185 schedule_work(&hw->usb_work);
3186 ++(wlandev->linux_stats.rx_errors);
3193 if (!test_and_set_bit(THROTTLE_RX, &hw->usb_flags) &&
3194 !timer_pending(&hw->throttle)) {
3195 mod_timer(&hw->throttle, jiffies + THROTTLE_JIFFIES);
3197 ++(wlandev->linux_stats.rx_errors);
3202 ++(wlandev->linux_stats.rx_over_errors);
3208 pr_debug("status=%d, device removed.\n", urb->status);
3214 pr_debug("status=%d, urb explicitly unlinked.\n", urb->status);
3219 pr_debug("urb status=%d, transfer flags=0x%x\n",
3220 urb->status, urb->transfer_flags);
3221 ++(wlandev->linux_stats.rx_errors);
3226 urb_status = urb->status;
3228 if (action != ABORT) {
3229 /* Repost the RX URB */
3230 result = submit_rx_urb(hw, GFP_ATOMIC);
3234 "Fatal, failed to resubmit rx_urb. error=%d\n",
3239 /* Handle any USB-IN packet */
3240 /* Note: the check of the sw_support field, the type field doesn't
3241 * have bit 12 set like the docs suggest.
3243 type = le16_to_cpu(usbin->type);
3244 if (HFA384x_USB_ISRXFRM(type)) {
3245 if (action == HANDLE) {
3246 if (usbin->txfrm.desc.sw_support == 0x0123) {
3247 hfa384x_usbin_txcompl(wlandev, usbin);
3249 skb_put(skb, sizeof(*usbin));
3250 hfa384x_usbin_rx(wlandev, skb);
3256 if (HFA384x_USB_ISTXFRM(type)) {
3257 if (action == HANDLE)
3258 hfa384x_usbin_txcompl(wlandev, usbin);
3262 case HFA384x_USB_INFOFRM:
3263 if (action == ABORT)
3265 if (action == HANDLE)
3266 hfa384x_usbin_info(wlandev, usbin);
3269 case HFA384x_USB_CMDRESP:
3270 case HFA384x_USB_WRIDRESP:
3271 case HFA384x_USB_RRIDRESP:
3272 case HFA384x_USB_WMEMRESP:
3273 case HFA384x_USB_RMEMRESP:
3274 /* ALWAYS, ALWAYS, ALWAYS handle this CTLX!!!! */
3275 hfa384x_usbin_ctlx(hw, usbin, urb_status);
3278 case HFA384x_USB_BUFAVAIL:
3279 pr_debug("Received BUFAVAIL packet, frmlen=%d\n",
3280 usbin->bufavail.frmlen);
3283 case HFA384x_USB_ERROR:
3284 pr_debug("Received USB_ERROR packet, errortype=%d\n",
3285 usbin->usberror.errortype);
3289 pr_debug("Unrecognized USBIN packet, type=%x, status=%d\n",
3290 usbin->type, urb_status);
3300 /*----------------------------------------------------------------
3301 * hfa384x_usbin_ctlx
3303 * We've received a URB containing a Prism2 "response" message.
3304 * This message needs to be matched up with a CTLX on the active
3305 * queue and our state updated accordingly.
3308 * hw ptr to hfa384x_t
3309 * usbin ptr to USB IN packet
3310 * urb_status status of this Bulk-In URB
3319 ----------------------------------------------------------------*/
3320 static void hfa384x_usbin_ctlx(hfa384x_t *hw, hfa384x_usbin_t *usbin,
3323 hfa384x_usbctlx_t *ctlx;
3325 unsigned long flags;
3328 spin_lock_irqsave(&hw->ctlxq.lock, flags);
3330 /* There can be only one CTLX on the active queue
3331 * at any one time, and this is the CTLX that the
3332 * timers are waiting for.
3334 if (list_empty(&hw->ctlxq.active))
3337 /* Remove the "response timeout". It's possible that
3338 * we are already too late, and that the timeout is
3339 * already running. And that's just too bad for us,
3340 * because we could lose our CTLX from the active
3343 if (del_timer(&hw->resptimer) == 0) {
3344 if (hw->resp_timer_done == 0) {
3345 spin_unlock_irqrestore(&hw->ctlxq.lock, flags);
3349 hw->resp_timer_done = 1;
3352 ctlx = get_active_ctlx(hw);
3354 if (urb_status != 0) {
3356 * Bad CTLX, so get rid of it. But we only
3357 * remove it from the active queue if we're no
3358 * longer expecting the OUT URB to complete.
3360 if (unlocked_usbctlx_cancel_async(hw, ctlx) == 0)
3363 const u16 intype = (usbin->type & ~cpu_to_le16(0x8000));
3366 * Check that our message is what we're expecting ...
3368 if (ctlx->outbuf.type != intype) {
3370 "Expected IN[%d], received IN[%d] - ignored.\n",
3371 le16_to_cpu(ctlx->outbuf.type),
3372 le16_to_cpu(intype));
3376 /* This URB has succeeded, so grab the data ... */
3377 memcpy(&ctlx->inbuf, usbin, sizeof(ctlx->inbuf));
3379 switch (ctlx->state) {
3380 case CTLX_REQ_SUBMITTED:
3382 * We have received our response URB before
3383 * our request has been acknowledged. Odd,
3384 * but our OUT URB is still alive...
3386 pr_debug("Causality violation: please reboot Universe\n");
3387 ctlx->state = CTLX_RESP_COMPLETE;
3390 case CTLX_REQ_COMPLETE:
3392 * This is the usual path: our request
3393 * has already been acknowledged, and
3394 * now we have received the reply too.
3396 ctlx->state = CTLX_COMPLETE;
3397 unlocked_usbctlx_complete(hw, ctlx);
3403 * Throw this CTLX away ...
3406 "Matched IN URB, CTLX[%d] in invalid state(%s)."
3408 le16_to_cpu(ctlx->outbuf.type),
3409 ctlxstr(ctlx->state));
3410 if (unlocked_usbctlx_cancel_async(hw, ctlx) == 0)
3417 spin_unlock_irqrestore(&hw->ctlxq.lock, flags);
3420 hfa384x_usbctlxq_run(hw);
3423 /*----------------------------------------------------------------
3424 * hfa384x_usbin_txcompl
3426 * At this point we have the results of a previous transmit.
3429 * wlandev wlan device
3430 * usbin ptr to the usb transfer buffer
3439 ----------------------------------------------------------------*/
3440 static void hfa384x_usbin_txcompl(wlandevice_t *wlandev,
3441 hfa384x_usbin_t *usbin)
3445 status = le16_to_cpu(usbin->type); /* yeah I know it says type... */
3447 /* Was there an error? */
3448 if (HFA384x_TXSTATUS_ISERROR(status))
3449 prism2sta_ev_txexc(wlandev, status);
3451 prism2sta_ev_tx(wlandev, status);
3454 /*----------------------------------------------------------------
3457 * At this point we have a successful received a rx frame packet.
3460 * wlandev wlan device
3461 * usbin ptr to the usb transfer buffer
3470 ----------------------------------------------------------------*/
3471 static void hfa384x_usbin_rx(wlandevice_t *wlandev, struct sk_buff *skb)
3473 hfa384x_usbin_t *usbin = (hfa384x_usbin_t *) skb->data;
3474 hfa384x_t *hw = wlandev->priv;
3476 struct p80211_rxmeta *rxmeta;
3480 /* Byte order convert once up front. */
3481 usbin->rxfrm.desc.status = le16_to_cpu(usbin->rxfrm.desc.status);
3482 usbin->rxfrm.desc.time = le32_to_cpu(usbin->rxfrm.desc.time);
3484 /* Now handle frame based on port# */
3485 switch (HFA384x_RXSTATUS_MACPORT_GET(usbin->rxfrm.desc.status)) {
3487 fc = le16_to_cpu(usbin->rxfrm.desc.frame_control);
3489 /* If exclude and we receive an unencrypted, drop it */
3490 if ((wlandev->hostwep & HOSTWEP_EXCLUDEUNENCRYPTED) &&
3491 !WLAN_GET_FC_ISWEP(fc)) {
3495 data_len = le16_to_cpu(usbin->rxfrm.desc.data_len);
3497 /* How much header data do we have? */
3498 hdrlen = p80211_headerlen(fc);
3500 /* Pull off the descriptor */
3501 skb_pull(skb, sizeof(hfa384x_rx_frame_t));
3503 /* Now shunt the header block up against the data block
3504 * with an "overlapping" copy
3506 memmove(skb_push(skb, hdrlen),
3507 &usbin->rxfrm.desc.frame_control, hdrlen);
3509 skb->dev = wlandev->netdev;
3510 skb->dev->last_rx = jiffies;
3512 /* And set the frame length properly */
3513 skb_trim(skb, data_len + hdrlen);
3515 /* The prism2 series does not return the CRC */
3516 memset(skb_put(skb, WLAN_CRC_LEN), 0xff, WLAN_CRC_LEN);
3518 skb_reset_mac_header(skb);
3520 /* Attach the rxmeta, set some stuff */
3521 p80211skb_rxmeta_attach(wlandev, skb);
3522 rxmeta = P80211SKB_RXMETA(skb);
3523 rxmeta->mactime = usbin->rxfrm.desc.time;
3524 rxmeta->rxrate = usbin->rxfrm.desc.rate;
3525 rxmeta->signal = usbin->rxfrm.desc.signal - hw->dbmadjust;
3526 rxmeta->noise = usbin->rxfrm.desc.silence - hw->dbmadjust;
3528 prism2sta_ev_rx(wlandev, skb);
3533 if (!HFA384x_RXSTATUS_ISFCSERR(usbin->rxfrm.desc.status)) {
3534 /* Copy to wlansnif skb */
3535 hfa384x_int_rxmonitor(wlandev, &usbin->rxfrm);
3538 pr_debug("Received monitor frame: FCSerr set\n");
3543 printk(KERN_WARNING "Received frame on unsupported port=%d\n",
3544 HFA384x_RXSTATUS_MACPORT_GET(usbin->rxfrm.desc.status));
3553 /*----------------------------------------------------------------
3554 * hfa384x_int_rxmonitor
3556 * Helper function for int_rx. Handles monitor frames.
3557 * Note that this function allocates space for the FCS and sets it
3558 * to 0xffffffff. The hfa384x doesn't give us the FCS value but the
3559 * higher layers expect it. 0xffffffff is used as a flag to indicate
3563 * wlandev wlan device structure
3564 * rxfrm rx descriptor read from card in int_rx
3570 * Allocates an skb and passes it up via the PF_PACKET interface.
3573 ----------------------------------------------------------------*/
3574 static void hfa384x_int_rxmonitor(wlandevice_t *wlandev,
3575 hfa384x_usb_rxfrm_t *rxfrm)
3577 hfa384x_rx_frame_t *rxdesc = &(rxfrm->desc);
3578 unsigned int hdrlen = 0;
3579 unsigned int datalen = 0;
3580 unsigned int skblen = 0;
3583 struct sk_buff *skb;
3584 hfa384x_t *hw = wlandev->priv;
3586 /* Remember the status, time, and data_len fields are in host order */
3587 /* Figure out how big the frame is */
3588 fc = le16_to_cpu(rxdesc->frame_control);
3589 hdrlen = p80211_headerlen(fc);
3590 datalen = le16_to_cpu(rxdesc->data_len);
3592 /* Allocate an ind message+framesize skb */
3593 skblen = sizeof(struct p80211_caphdr) + hdrlen + datalen + WLAN_CRC_LEN;
3595 /* sanity check the length */
3597 (sizeof(struct p80211_caphdr) +
3598 WLAN_HDR_A4_LEN + WLAN_DATA_MAXLEN + WLAN_CRC_LEN)) {
3599 pr_debug("overlen frm: len=%zd\n",
3600 skblen - sizeof(struct p80211_caphdr));
3603 skb = dev_alloc_skb(skblen);
3606 "alloc_skb failed trying to allocate %d bytes\n",
3611 /* only prepend the prism header if in the right mode */
3612 if ((wlandev->netdev->type == ARPHRD_IEEE80211_PRISM) &&
3613 (hw->sniffhdr != 0)) {
3614 struct p80211_caphdr *caphdr;
3615 /* The NEW header format! */
3616 datap = skb_put(skb, sizeof(struct p80211_caphdr));
3617 caphdr = (struct p80211_caphdr *) datap;
3619 caphdr->version = htonl(P80211CAPTURE_VERSION);
3620 caphdr->length = htonl(sizeof(struct p80211_caphdr));
3621 caphdr->mactime = __cpu_to_be64(rxdesc->time) * 1000;
3622 caphdr->hosttime = __cpu_to_be64(jiffies);
3623 caphdr->phytype = htonl(4); /* dss_dot11_b */
3624 caphdr->channel = htonl(hw->sniff_channel);
3625 caphdr->datarate = htonl(rxdesc->rate);
3626 caphdr->antenna = htonl(0); /* unknown */
3627 caphdr->priority = htonl(0); /* unknown */
3628 caphdr->ssi_type = htonl(3); /* rssi_raw */
3629 caphdr->ssi_signal = htonl(rxdesc->signal);
3630 caphdr->ssi_noise = htonl(rxdesc->silence);
3631 caphdr->preamble = htonl(0); /* unknown */
3632 caphdr->encoding = htonl(1); /* cck */
3635 /* Copy the 802.11 header to the skb
3636 (ctl frames may be less than a full header) */
3637 datap = skb_put(skb, hdrlen);
3638 memcpy(datap, &(rxdesc->frame_control), hdrlen);
3640 /* If any, copy the data from the card to the skb */
3642 datap = skb_put(skb, datalen);
3643 memcpy(datap, rxfrm->data, datalen);
3645 /* check for unencrypted stuff if WEP bit set. */
3646 if (*(datap - hdrlen + 1) & 0x40) /* wep set */
3647 if ((*(datap) == 0xaa) && (*(datap + 1) == 0xaa))
3648 /* clear wep; it's the 802.2 header! */
3649 *(datap - hdrlen + 1) &= 0xbf;
3652 if (hw->sniff_fcs) {
3654 datap = skb_put(skb, WLAN_CRC_LEN);
3655 memset(datap, 0xff, WLAN_CRC_LEN);
3658 /* pass it back up */
3659 prism2sta_ev_rx(wlandev, skb);
3664 /*----------------------------------------------------------------
3665 * hfa384x_usbin_info
3667 * At this point we have a successful received a Prism2 info frame.
3670 * wlandev wlan device
3671 * usbin ptr to the usb transfer buffer
3680 ----------------------------------------------------------------*/
3681 static void hfa384x_usbin_info(wlandevice_t *wlandev, hfa384x_usbin_t *usbin)
3683 usbin->infofrm.info.framelen =
3684 le16_to_cpu(usbin->infofrm.info.framelen);
3685 prism2sta_ev_info(wlandev, &usbin->infofrm.info);
3688 /*----------------------------------------------------------------
3689 * hfa384x_usbout_callback
3691 * Callback for URBs on the BULKOUT endpoint.
3694 * urb ptr to the completed urb
3703 ----------------------------------------------------------------*/
3704 static void hfa384x_usbout_callback(struct urb *urb)
3706 wlandevice_t *wlandev = urb->context;
3707 hfa384x_usbout_t *usbout = urb->transfer_buffer;
3713 if (wlandev && wlandev->netdev) {
3715 switch (urb->status) {
3717 hfa384x_usbout_tx(wlandev, usbout);
3722 hfa384x_t *hw = wlandev->priv;
3724 "%s tx pipe stalled: requesting reset\n",
3725 wlandev->netdev->name);
3726 if (!test_and_set_bit
3727 (WORK_TX_HALT, &hw->usb_flags))
3728 schedule_work(&hw->usb_work);
3729 ++(wlandev->linux_stats.tx_errors);
3737 hfa384x_t *hw = wlandev->priv;
3739 if (!test_and_set_bit
3740 (THROTTLE_TX, &hw->usb_flags)
3741 && !timer_pending(&hw->throttle)) {
3742 mod_timer(&hw->throttle,
3743 jiffies + THROTTLE_JIFFIES);
3745 ++(wlandev->linux_stats.tx_errors);
3746 netif_stop_queue(wlandev->netdev);
3752 /* Ignorable errors */
3756 printk(KERN_INFO "unknown urb->status=%d\n",
3758 ++(wlandev->linux_stats.tx_errors);
3764 /*----------------------------------------------------------------
3765 * hfa384x_ctlxout_callback
3767 * Callback for control data on the BULKOUT endpoint.
3770 * urb ptr to the completed urb
3779 ----------------------------------------------------------------*/
3780 static void hfa384x_ctlxout_callback(struct urb *urb)
3782 hfa384x_t *hw = urb->context;
3783 int delete_resptimer = 0;
3786 hfa384x_usbctlx_t *ctlx;
3787 unsigned long flags;
3789 pr_debug("urb->status=%d\n", urb->status);
3793 if ((urb->status == -ESHUTDOWN) ||
3794 (urb->status == -ENODEV) || (hw == NULL))
3798 spin_lock_irqsave(&hw->ctlxq.lock, flags);
3801 * Only one CTLX at a time on the "active" list, and
3802 * none at all if we are unplugged. However, we can
3803 * rely on the disconnect function to clean everything
3804 * up if someone unplugged the adapter.
3806 if (list_empty(&hw->ctlxq.active)) {
3807 spin_unlock_irqrestore(&hw->ctlxq.lock, flags);
3812 * Having something on the "active" queue means
3813 * that we have timers to worry about ...
3815 if (del_timer(&hw->reqtimer) == 0) {
3816 if (hw->req_timer_done == 0) {
3818 * This timer was actually running while we
3819 * were trying to delete it. Let it terminate
3820 * gracefully instead.
3822 spin_unlock_irqrestore(&hw->ctlxq.lock, flags);
3826 hw->req_timer_done = 1;
3829 ctlx = get_active_ctlx(hw);
3831 if (urb->status == 0) {
3832 /* Request portion of a CTLX is successful */
3833 switch (ctlx->state) {
3834 case CTLX_REQ_SUBMITTED:
3835 /* This OUT-ACK received before IN */
3836 ctlx->state = CTLX_REQ_COMPLETE;
3839 case CTLX_RESP_COMPLETE:
3840 /* IN already received before this OUT-ACK,
3841 * so this command must now be complete.
3843 ctlx->state = CTLX_COMPLETE;
3844 unlocked_usbctlx_complete(hw, ctlx);
3849 /* This is NOT a valid CTLX "success" state! */
3851 "Illegal CTLX[%d] success state(%s, %d) in OUT URB\n",
3852 le16_to_cpu(ctlx->outbuf.type),
3853 ctlxstr(ctlx->state), urb->status);
3857 /* If the pipe has stalled then we need to reset it */
3858 if ((urb->status == -EPIPE) &&
3859 !test_and_set_bit(WORK_TX_HALT, &hw->usb_flags)) {
3861 "%s tx pipe stalled: requesting reset\n",
3862 hw->wlandev->netdev->name);
3863 schedule_work(&hw->usb_work);
3866 /* If someone cancels the OUT URB then its status
3867 * should be either -ECONNRESET or -ENOENT.
3869 ctlx->state = CTLX_REQ_FAILED;
3870 unlocked_usbctlx_complete(hw, ctlx);
3871 delete_resptimer = 1;
3876 if (delete_resptimer) {
3877 timer_ok = del_timer(&hw->resptimer);
3879 hw->resp_timer_done = 1;
3882 spin_unlock_irqrestore(&hw->ctlxq.lock, flags);
3884 if (!timer_ok && (hw->resp_timer_done == 0)) {
3885 spin_lock_irqsave(&hw->ctlxq.lock, flags);
3890 hfa384x_usbctlxq_run(hw);
3896 /*----------------------------------------------------------------
3897 * hfa384x_usbctlx_reqtimerfn
3899 * Timer response function for CTLX request timeouts. If this
3900 * function is called, it means that the callback for the OUT
3901 * URB containing a Prism2.x XXX_Request was never called.
3904 * data a ptr to the hfa384x_t
3913 ----------------------------------------------------------------*/
3914 static void hfa384x_usbctlx_reqtimerfn(unsigned long data)
3916 hfa384x_t *hw = (hfa384x_t *) data;
3917 unsigned long flags;
3919 spin_lock_irqsave(&hw->ctlxq.lock, flags);
3921 hw->req_timer_done = 1;
3923 /* Removing the hardware automatically empties
3924 * the active list ...
3926 if (!list_empty(&hw->ctlxq.active)) {
3928 * We must ensure that our URB is removed from
3929 * the system, if it hasn't already expired.
3931 hw->ctlx_urb.transfer_flags |= URB_ASYNC_UNLINK;
3932 if (usb_unlink_urb(&hw->ctlx_urb) == -EINPROGRESS) {
3933 hfa384x_usbctlx_t *ctlx = get_active_ctlx(hw);
3935 ctlx->state = CTLX_REQ_FAILED;
3937 /* This URB was active, but has now been
3938 * cancelled. It will now have a status of
3939 * -ECONNRESET in the callback function.
3941 * We are cancelling this CTLX, so we're
3942 * not going to need to wait for a response.
3943 * The URB's callback function will check
3944 * that this timer is truly dead.
3946 if (del_timer(&hw->resptimer) != 0)
3947 hw->resp_timer_done = 1;
3951 spin_unlock_irqrestore(&hw->ctlxq.lock, flags);
3954 /*----------------------------------------------------------------
3955 * hfa384x_usbctlx_resptimerfn
3957 * Timer response function for CTLX response timeouts. If this
3958 * function is called, it means that the callback for the IN
3959 * URB containing a Prism2.x XXX_Response was never called.
3962 * data a ptr to the hfa384x_t
3971 ----------------------------------------------------------------*/
3972 static void hfa384x_usbctlx_resptimerfn(unsigned long data)
3974 hfa384x_t *hw = (hfa384x_t *) data;
3975 unsigned long flags;
3977 spin_lock_irqsave(&hw->ctlxq.lock, flags);
3979 hw->resp_timer_done = 1;
3981 /* The active list will be empty if the
3982 * adapter has been unplugged ...
3984 if (!list_empty(&hw->ctlxq.active)) {
3985 hfa384x_usbctlx_t *ctlx = get_active_ctlx(hw);
3987 if (unlocked_usbctlx_cancel_async(hw, ctlx) == 0) {
3988 spin_unlock_irqrestore(&hw->ctlxq.lock, flags);
3989 hfa384x_usbctlxq_run(hw);
3994 spin_unlock_irqrestore(&hw->ctlxq.lock, flags);
4001 /*----------------------------------------------------------------
4002 * hfa384x_usb_throttlefn
4015 ----------------------------------------------------------------*/
4016 static void hfa384x_usb_throttlefn(unsigned long data)
4018 hfa384x_t *hw = (hfa384x_t *) data;
4019 unsigned long flags;
4021 spin_lock_irqsave(&hw->ctlxq.lock, flags);
4024 * We need to check BOTH the RX and the TX throttle controls,
4025 * so we use the bitwise OR instead of the logical OR.
4027 pr_debug("flags=0x%lx\n", hw->usb_flags);
4028 if (!hw->wlandev->hwremoved &&
4029 ((test_and_clear_bit(THROTTLE_RX, &hw->usb_flags) &&
4030 !test_and_set_bit(WORK_RX_RESUME, &hw->usb_flags))
4032 (test_and_clear_bit(THROTTLE_TX, &hw->usb_flags) &&
4033 !test_and_set_bit(WORK_TX_RESUME, &hw->usb_flags))
4035 schedule_work(&hw->usb_work);
4038 spin_unlock_irqrestore(&hw->ctlxq.lock, flags);
4041 /*----------------------------------------------------------------
4042 * hfa384x_usbctlx_submit
4044 * Called from the doxxx functions to submit a CTLX to the queue
4047 * hw ptr to the hw struct
4048 * ctlx ctlx structure to enqueue
4051 * -ENODEV if the adapter is unplugged
4057 * process or interrupt
4058 ----------------------------------------------------------------*/
4059 static int hfa384x_usbctlx_submit(hfa384x_t *hw, hfa384x_usbctlx_t *ctlx)
4061 unsigned long flags;
4064 spin_lock_irqsave(&hw->ctlxq.lock, flags);
4066 if (hw->wlandev->hwremoved) {
4067 spin_unlock_irqrestore(&hw->ctlxq.lock, flags);
4070 ctlx->state = CTLX_PENDING;
4071 list_add_tail(&ctlx->list, &hw->ctlxq.pending);
4073 spin_unlock_irqrestore(&hw->ctlxq.lock, flags);
4074 hfa384x_usbctlxq_run(hw);
4081 /*----------------------------------------------------------------
4084 * At this point we have finished a send of a frame. Mark the URB
4085 * as available and call ev_alloc to notify higher layers we're
4089 * wlandev wlan device
4090 * usbout ptr to the usb transfer buffer
4099 ----------------------------------------------------------------*/
4100 static void hfa384x_usbout_tx(wlandevice_t *wlandev, hfa384x_usbout_t *usbout)
4102 prism2sta_ev_alloc(wlandev);
4105 /*----------------------------------------------------------------
4106 * hfa384x_isgood_pdrcore
4108 * Quick check of PDR codes.
4111 * pdrcode PDR code number (host order)
4120 ----------------------------------------------------------------*/
4121 static int hfa384x_isgood_pdrcode(u16 pdrcode)
4124 case HFA384x_PDR_END_OF_PDA:
4125 case HFA384x_PDR_PCB_PARTNUM:
4126 case HFA384x_PDR_PDAVER:
4127 case HFA384x_PDR_NIC_SERIAL:
4128 case HFA384x_PDR_MKK_MEASUREMENTS:
4129 case HFA384x_PDR_NIC_RAMSIZE:
4130 case HFA384x_PDR_MFISUPRANGE:
4131 case HFA384x_PDR_CFISUPRANGE:
4132 case HFA384x_PDR_NICID:
4133 case HFA384x_PDR_MAC_ADDRESS:
4134 case HFA384x_PDR_REGDOMAIN:
4135 case HFA384x_PDR_ALLOWED_CHANNEL:
4136 case HFA384x_PDR_DEFAULT_CHANNEL:
4137 case HFA384x_PDR_TEMPTYPE:
4138 case HFA384x_PDR_IFR_SETTING:
4139 case HFA384x_PDR_RFR_SETTING:
4140 case HFA384x_PDR_HFA3861_BASELINE:
4141 case HFA384x_PDR_HFA3861_SHADOW:
4142 case HFA384x_PDR_HFA3861_IFRF:
4143 case HFA384x_PDR_HFA3861_CHCALSP:
4144 case HFA384x_PDR_HFA3861_CHCALI:
4145 case HFA384x_PDR_3842_NIC_CONFIG:
4146 case HFA384x_PDR_USB_ID:
4147 case HFA384x_PDR_PCI_ID:
4148 case HFA384x_PDR_PCI_IFCONF:
4149 case HFA384x_PDR_PCI_PMCONF:
4150 case HFA384x_PDR_RFENRGY:
4151 case HFA384x_PDR_HFA3861_MANF_TESTSP:
4152 case HFA384x_PDR_HFA3861_MANF_TESTI:
4157 if (pdrcode < 0x1000) {
4158 /* code is OK, but we don't know exactly what it is */
4159 pr_debug("Encountered unknown PDR#=0x%04x, "
4160 "assuming it's ok.\n", pdrcode);
4164 pr_debug("Encountered unknown PDR#=0x%04x, "
4165 "(>=0x1000), assuming it's bad.\n", pdrcode);
4170 return 0; /* avoid compiler warnings */