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);
180 static void hfa384x_usbin_ctlx(hfa384x_t *hw, hfa384x_usbin_t *usbin,
183 /*---------------------------------------------------*/
184 /* Functions to support the prism2 usb command queue */
186 static void hfa384x_usbctlxq_run(hfa384x_t *hw);
188 static void hfa384x_usbctlx_reqtimerfn(unsigned long data);
190 static void hfa384x_usbctlx_resptimerfn(unsigned long data);
192 static void hfa384x_usb_throttlefn(unsigned long data);
194 static void hfa384x_usbctlx_completion_task(unsigned long data);
196 static void hfa384x_usbctlx_reaper_task(unsigned long data);
198 static int hfa384x_usbctlx_submit(hfa384x_t *hw, hfa384x_usbctlx_t *ctlx);
200 static void unlocked_usbctlx_complete(hfa384x_t *hw, hfa384x_usbctlx_t *ctlx);
202 struct usbctlx_completor {
203 int (*complete)(struct usbctlx_completor *);
207 hfa384x_usbctlx_complete_sync(hfa384x_t *hw,
208 hfa384x_usbctlx_t *ctlx,
209 struct usbctlx_completor *completor);
212 unlocked_usbctlx_cancel_async(hfa384x_t *hw, hfa384x_usbctlx_t *ctlx);
214 static void hfa384x_cb_status(hfa384x_t *hw, const hfa384x_usbctlx_t *ctlx);
216 static void hfa384x_cb_rrid(hfa384x_t *hw, const hfa384x_usbctlx_t *ctlx);
219 usbctlx_get_status(const hfa384x_usb_cmdresp_t *cmdresp,
220 hfa384x_cmdresult_t *result);
223 usbctlx_get_rridresult(const hfa384x_usb_rridresp_t *rridresp,
224 hfa384x_rridresult_t *result);
226 /*---------------------------------------------------*/
227 /* Low level req/resp CTLX formatters and submitters */
229 hfa384x_docmd(hfa384x_t *hw,
231 hfa384x_metacmd_t *cmd,
232 ctlx_cmdcb_t cmdcb, ctlx_usercb_t usercb, void *usercb_data);
235 hfa384x_dorrid(hfa384x_t *hw,
239 unsigned int riddatalen,
240 ctlx_cmdcb_t cmdcb, ctlx_usercb_t usercb, void *usercb_data);
243 hfa384x_dowrid(hfa384x_t *hw,
247 unsigned int riddatalen,
248 ctlx_cmdcb_t cmdcb, ctlx_usercb_t usercb, void *usercb_data);
251 hfa384x_dormem(hfa384x_t *hw,
257 ctlx_cmdcb_t cmdcb, ctlx_usercb_t usercb, void *usercb_data);
260 hfa384x_dowmem(hfa384x_t *hw,
266 ctlx_cmdcb_t cmdcb, ctlx_usercb_t usercb, void *usercb_data);
268 static int hfa384x_isgood_pdrcode(u16 pdrcode);
270 static inline const char *ctlxstr(CTLX_STATE s)
272 static const char * const ctlx_str[] = {
277 "Request packet submitted",
278 "Request packet completed",
279 "Response packet completed"
285 static inline hfa384x_usbctlx_t *get_active_ctlx(hfa384x_t *hw)
287 return list_entry(hw->ctlxq.active.next, hfa384x_usbctlx_t, list);
291 void dbprint_urb(struct urb *urb)
293 pr_debug("urb->pipe=0x%08x\n", urb->pipe);
294 pr_debug("urb->status=0x%08x\n", urb->status);
295 pr_debug("urb->transfer_flags=0x%08x\n", urb->transfer_flags);
296 pr_debug("urb->transfer_buffer=0x%08x\n",
297 (unsigned int)urb->transfer_buffer);
298 pr_debug("urb->transfer_buffer_length=0x%08x\n",
299 urb->transfer_buffer_length);
300 pr_debug("urb->actual_length=0x%08x\n", urb->actual_length);
301 pr_debug("urb->bandwidth=0x%08x\n", urb->bandwidth);
302 pr_debug("urb->setup_packet(ctl)=0x%08x\n",
303 (unsigned int)urb->setup_packet);
304 pr_debug("urb->start_frame(iso/irq)=0x%08x\n", urb->start_frame);
305 pr_debug("urb->interval(irq)=0x%08x\n", urb->interval);
306 pr_debug("urb->error_count(iso)=0x%08x\n", urb->error_count);
307 pr_debug("urb->timeout=0x%08x\n", urb->timeout);
308 pr_debug("urb->context=0x%08x\n", (unsigned int)urb->context);
309 pr_debug("urb->complete=0x%08x\n", (unsigned int)urb->complete);
313 /*----------------------------------------------------------------
316 * Listen for input data on the BULK-IN pipe. If the pipe has
317 * stalled then schedule it to be reset.
321 * memflags memory allocation flags
324 * error code from submission
328 ----------------------------------------------------------------*/
329 static int submit_rx_urb(hfa384x_t *hw, gfp_t memflags)
334 skb = dev_alloc_skb(sizeof(hfa384x_usbin_t));
340 /* Post the IN urb */
341 usb_fill_bulk_urb(&hw->rx_urb, hw->usb,
343 skb->data, sizeof(hfa384x_usbin_t),
344 hfa384x_usbin_callback, hw->wlandev);
346 hw->rx_urb_skb = skb;
349 if (!hw->wlandev->hwremoved &&
350 !test_bit(WORK_RX_HALT, &hw->usb_flags)) {
351 result = SUBMIT_URB(&hw->rx_urb, memflags);
353 /* Check whether we need to reset the RX pipe */
354 if (result == -EPIPE) {
355 netdev_warn(hw->wlandev->netdev,
356 "%s rx pipe stalled: requesting reset\n",
357 hw->wlandev->netdev->name);
358 if (!test_and_set_bit(WORK_RX_HALT, &hw->usb_flags))
359 schedule_work(&hw->usb_work);
363 /* Don't leak memory if anything should go wrong */
366 hw->rx_urb_skb = NULL;
373 /*----------------------------------------------------------------
376 * Prepares and submits the URB of transmitted data. If the
377 * submission fails then it will schedule the output pipe to
382 * tx_urb URB of data for transmission
383 * memflags memory allocation flags
386 * error code from submission
390 ----------------------------------------------------------------*/
391 static int submit_tx_urb(hfa384x_t *hw, struct urb *tx_urb, gfp_t memflags)
393 struct net_device *netdev = hw->wlandev->netdev;
397 if (netif_running(netdev)) {
398 if (!hw->wlandev->hwremoved &&
399 !test_bit(WORK_TX_HALT, &hw->usb_flags)) {
400 result = SUBMIT_URB(tx_urb, memflags);
402 /* Test whether we need to reset the TX pipe */
403 if (result == -EPIPE) {
404 netdev_warn(hw->wlandev->netdev,
405 "%s tx pipe stalled: requesting reset\n",
407 set_bit(WORK_TX_HALT, &hw->usb_flags);
408 schedule_work(&hw->usb_work);
409 } else if (result == 0) {
410 netif_stop_queue(netdev);
418 /*----------------------------------------------------------------
421 * There are some things that the USB stack cannot do while
422 * in interrupt context, so we arrange this function to run
423 * in process context.
426 * hw device structure
432 * process (by design)
433 ----------------------------------------------------------------*/
434 static void hfa384x_usb_defer(struct work_struct *data)
436 hfa384x_t *hw = container_of(data, struct hfa384x, usb_work);
437 struct net_device *netdev = hw->wlandev->netdev;
439 /* Don't bother trying to reset anything if the plug
440 * has been pulled ...
442 if (hw->wlandev->hwremoved)
445 /* Reception has stopped: try to reset the input pipe */
446 if (test_bit(WORK_RX_HALT, &hw->usb_flags)) {
449 usb_kill_urb(&hw->rx_urb); /* Cannot be holding spinlock! */
451 ret = usb_clear_halt(hw->usb, hw->endp_in);
453 netdev_err(hw->wlandev->netdev,
454 "Failed to clear rx pipe for %s: err=%d\n",
457 netdev_info(hw->wlandev->netdev, "%s rx pipe reset complete.\n",
459 clear_bit(WORK_RX_HALT, &hw->usb_flags);
460 set_bit(WORK_RX_RESUME, &hw->usb_flags);
464 /* Resume receiving data back from the device. */
465 if (test_bit(WORK_RX_RESUME, &hw->usb_flags)) {
468 ret = submit_rx_urb(hw, GFP_KERNEL);
470 netdev_err(hw->wlandev->netdev,
471 "Failed to resume %s rx pipe.\n",
474 clear_bit(WORK_RX_RESUME, &hw->usb_flags);
478 /* Transmission has stopped: try to reset the output pipe */
479 if (test_bit(WORK_TX_HALT, &hw->usb_flags)) {
482 usb_kill_urb(&hw->tx_urb);
483 ret = usb_clear_halt(hw->usb, hw->endp_out);
485 netdev_err(hw->wlandev->netdev,
486 "Failed to clear tx pipe for %s: err=%d\n",
489 netdev_info(hw->wlandev->netdev, "%s tx pipe reset complete.\n",
491 clear_bit(WORK_TX_HALT, &hw->usb_flags);
492 set_bit(WORK_TX_RESUME, &hw->usb_flags);
494 /* Stopping the BULK-OUT pipe also blocked
495 * us from sending any more CTLX URBs, so
496 * we need to re-run our queue ...
498 hfa384x_usbctlxq_run(hw);
502 /* Resume transmitting. */
503 if (test_and_clear_bit(WORK_TX_RESUME, &hw->usb_flags))
504 netif_wake_queue(hw->wlandev->netdev);
507 /*----------------------------------------------------------------
510 * Sets up the hfa384x_t data structure for use. Note this
511 * does _not_ initialize the actual hardware, just the data structures
512 * we use to keep track of its state.
515 * hw device structure
516 * irq device irq number
517 * iobase i/o base address for register access
518 * membase memory base address for register access
527 ----------------------------------------------------------------*/
528 void hfa384x_create(hfa384x_t *hw, struct usb_device *usb)
530 memset(hw, 0, sizeof(hfa384x_t));
533 /* set up the endpoints */
534 hw->endp_in = usb_rcvbulkpipe(usb, 1);
535 hw->endp_out = usb_sndbulkpipe(usb, 2);
537 /* Set up the waitq */
538 init_waitqueue_head(&hw->cmdq);
540 /* Initialize the command queue */
541 spin_lock_init(&hw->ctlxq.lock);
542 INIT_LIST_HEAD(&hw->ctlxq.pending);
543 INIT_LIST_HEAD(&hw->ctlxq.active);
544 INIT_LIST_HEAD(&hw->ctlxq.completing);
545 INIT_LIST_HEAD(&hw->ctlxq.reapable);
547 /* Initialize the authentication queue */
548 skb_queue_head_init(&hw->authq);
550 tasklet_init(&hw->reaper_bh,
551 hfa384x_usbctlx_reaper_task, (unsigned long)hw);
552 tasklet_init(&hw->completion_bh,
553 hfa384x_usbctlx_completion_task, (unsigned long)hw);
554 INIT_WORK(&hw->link_bh, prism2sta_processing_defer);
555 INIT_WORK(&hw->usb_work, hfa384x_usb_defer);
557 setup_timer(&hw->throttle, hfa384x_usb_throttlefn, (unsigned long)hw);
559 setup_timer(&hw->resptimer, hfa384x_usbctlx_resptimerfn,
562 setup_timer(&hw->reqtimer, hfa384x_usbctlx_reqtimerfn,
565 usb_init_urb(&hw->rx_urb);
566 usb_init_urb(&hw->tx_urb);
567 usb_init_urb(&hw->ctlx_urb);
569 hw->link_status = HFA384x_LINK_NOTCONNECTED;
570 hw->state = HFA384x_STATE_INIT;
572 INIT_WORK(&hw->commsqual_bh, prism2sta_commsqual_defer);
573 setup_timer(&hw->commsqual_timer, prism2sta_commsqual_timer,
577 /*----------------------------------------------------------------
580 * Partner to hfa384x_create(). This function cleans up the hw
581 * structure so that it can be freed by the caller using a simple
582 * kfree. Currently, this function is just a placeholder. If, at some
583 * point in the future, an hw in the 'shutdown' state requires a 'deep'
584 * kfree, this is where it should be done. Note that if this function
585 * is called on a _running_ hw structure, the drvr_stop() function is
589 * hw device structure
592 * nothing, this function is not allowed to fail.
598 ----------------------------------------------------------------*/
599 void hfa384x_destroy(hfa384x_t *hw)
603 if (hw->state == HFA384x_STATE_RUNNING)
604 hfa384x_drvr_stop(hw);
605 hw->state = HFA384x_STATE_PREINIT;
607 kfree(hw->scanresults);
608 hw->scanresults = NULL;
610 /* Now to clean out the auth queue */
611 while ((skb = skb_dequeue(&hw->authq)))
615 static hfa384x_usbctlx_t *usbctlx_alloc(void)
617 hfa384x_usbctlx_t *ctlx;
619 ctlx = kzalloc(sizeof(*ctlx),
620 in_interrupt() ? GFP_ATOMIC : GFP_KERNEL);
622 init_completion(&ctlx->done);
628 usbctlx_get_status(const hfa384x_usb_cmdresp_t *cmdresp,
629 hfa384x_cmdresult_t *result)
631 result->status = le16_to_cpu(cmdresp->status);
632 result->resp0 = le16_to_cpu(cmdresp->resp0);
633 result->resp1 = le16_to_cpu(cmdresp->resp1);
634 result->resp2 = le16_to_cpu(cmdresp->resp2);
636 pr_debug("cmdresult:status=0x%04x resp0=0x%04x resp1=0x%04x resp2=0x%04x\n",
637 result->status, result->resp0, result->resp1, result->resp2);
639 return result->status & HFA384x_STATUS_RESULT;
643 usbctlx_get_rridresult(const hfa384x_usb_rridresp_t *rridresp,
644 hfa384x_rridresult_t *result)
646 result->rid = le16_to_cpu(rridresp->rid);
647 result->riddata = rridresp->data;
648 result->riddata_len = ((le16_to_cpu(rridresp->frmlen) - 1) * 2);
651 /*----------------------------------------------------------------
653 * This completor must be passed to hfa384x_usbctlx_complete_sync()
654 * when processing a CTLX that returns a hfa384x_cmdresult_t structure.
655 ----------------------------------------------------------------*/
656 struct usbctlx_cmd_completor {
657 struct usbctlx_completor head;
659 const hfa384x_usb_cmdresp_t *cmdresp;
660 hfa384x_cmdresult_t *result;
663 static inline int usbctlx_cmd_completor_fn(struct usbctlx_completor *head)
665 struct usbctlx_cmd_completor *complete;
667 complete = (struct usbctlx_cmd_completor *)head;
668 return usbctlx_get_status(complete->cmdresp, complete->result);
671 static inline struct usbctlx_completor *init_cmd_completor(
672 struct usbctlx_cmd_completor
674 const hfa384x_usb_cmdresp_t
676 hfa384x_cmdresult_t *result)
678 completor->head.complete = usbctlx_cmd_completor_fn;
679 completor->cmdresp = cmdresp;
680 completor->result = result;
681 return &(completor->head);
684 /*----------------------------------------------------------------
686 * This completor must be passed to hfa384x_usbctlx_complete_sync()
687 * when processing a CTLX that reads a RID.
688 ----------------------------------------------------------------*/
689 struct usbctlx_rrid_completor {
690 struct usbctlx_completor head;
692 const hfa384x_usb_rridresp_t *rridresp;
694 unsigned int riddatalen;
697 static int usbctlx_rrid_completor_fn(struct usbctlx_completor *head)
699 struct usbctlx_rrid_completor *complete;
700 hfa384x_rridresult_t rridresult;
702 complete = (struct usbctlx_rrid_completor *)head;
703 usbctlx_get_rridresult(complete->rridresp, &rridresult);
705 /* Validate the length, note body len calculation in bytes */
706 if (rridresult.riddata_len != complete->riddatalen) {
707 pr_warn("RID len mismatch, rid=0x%04x hlen=%d fwlen=%d\n",
709 complete->riddatalen, rridresult.riddata_len);
713 memcpy(complete->riddata, rridresult.riddata, complete->riddatalen);
717 static inline struct usbctlx_completor *init_rrid_completor(
718 struct usbctlx_rrid_completor
720 const hfa384x_usb_rridresp_t
723 unsigned int riddatalen)
725 completor->head.complete = usbctlx_rrid_completor_fn;
726 completor->rridresp = rridresp;
727 completor->riddata = riddata;
728 completor->riddatalen = riddatalen;
729 return &(completor->head);
732 /*----------------------------------------------------------------
734 * Interprets the results of a synchronous RID-write
735 ----------------------------------------------------------------*/
736 #define init_wrid_completor init_cmd_completor
738 /*----------------------------------------------------------------
740 * Interprets the results of a synchronous memory-write
741 ----------------------------------------------------------------*/
742 #define init_wmem_completor init_cmd_completor
744 /*----------------------------------------------------------------
746 * Interprets the results of a synchronous memory-read
747 ----------------------------------------------------------------*/
748 struct usbctlx_rmem_completor {
749 struct usbctlx_completor head;
751 const hfa384x_usb_rmemresp_t *rmemresp;
756 static int usbctlx_rmem_completor_fn(struct usbctlx_completor *head)
758 struct usbctlx_rmem_completor *complete =
759 (struct usbctlx_rmem_completor *)head;
761 pr_debug("rmemresp:len=%d\n", complete->rmemresp->frmlen);
762 memcpy(complete->data, complete->rmemresp->data, complete->len);
766 static inline struct usbctlx_completor *init_rmem_completor(
767 struct usbctlx_rmem_completor
769 hfa384x_usb_rmemresp_t
774 completor->head.complete = usbctlx_rmem_completor_fn;
775 completor->rmemresp = rmemresp;
776 completor->data = data;
777 completor->len = len;
778 return &(completor->head);
781 /*----------------------------------------------------------------
784 * Ctlx_complete handler for async CMD type control exchanges.
785 * mark the hw struct as such.
787 * Note: If the handling is changed here, it should probably be
788 * changed in docmd as well.
792 * ctlx completed CTLX
801 ----------------------------------------------------------------*/
802 static void hfa384x_cb_status(hfa384x_t *hw, const hfa384x_usbctlx_t *ctlx)
804 if (ctlx->usercb != NULL) {
805 hfa384x_cmdresult_t cmdresult;
807 if (ctlx->state != CTLX_COMPLETE) {
808 memset(&cmdresult, 0, sizeof(cmdresult));
810 HFA384x_STATUS_RESULT_SET(HFA384x_CMD_ERR);
812 usbctlx_get_status(&ctlx->inbuf.cmdresp, &cmdresult);
815 ctlx->usercb(hw, &cmdresult, ctlx->usercb_data);
819 /*----------------------------------------------------------------
822 * CTLX completion handler for async RRID type control exchanges.
824 * Note: If the handling is changed here, it should probably be
825 * changed in dorrid as well.
829 * ctlx completed CTLX
838 ----------------------------------------------------------------*/
839 static void hfa384x_cb_rrid(hfa384x_t *hw, const hfa384x_usbctlx_t *ctlx)
841 if (ctlx->usercb != NULL) {
842 hfa384x_rridresult_t rridresult;
844 if (ctlx->state != CTLX_COMPLETE) {
845 memset(&rridresult, 0, sizeof(rridresult));
846 rridresult.rid = le16_to_cpu(ctlx->outbuf.rridreq.rid);
848 usbctlx_get_rridresult(&ctlx->inbuf.rridresp,
852 ctlx->usercb(hw, &rridresult, ctlx->usercb_data);
856 static inline int hfa384x_docmd_wait(hfa384x_t *hw, hfa384x_metacmd_t *cmd)
858 return hfa384x_docmd(hw, DOWAIT, cmd, NULL, NULL, NULL);
862 hfa384x_docmd_async(hfa384x_t *hw,
863 hfa384x_metacmd_t *cmd,
864 ctlx_cmdcb_t cmdcb, ctlx_usercb_t usercb, void *usercb_data)
866 return hfa384x_docmd(hw, DOASYNC, cmd, cmdcb, usercb, usercb_data);
870 hfa384x_dorrid_wait(hfa384x_t *hw, u16 rid, void *riddata,
871 unsigned int riddatalen)
873 return hfa384x_dorrid(hw, DOWAIT,
874 rid, riddata, riddatalen, NULL, NULL, NULL);
878 hfa384x_dorrid_async(hfa384x_t *hw,
879 u16 rid, void *riddata, unsigned int riddatalen,
881 ctlx_usercb_t usercb, void *usercb_data)
883 return hfa384x_dorrid(hw, DOASYNC,
884 rid, riddata, riddatalen,
885 cmdcb, usercb, usercb_data);
889 hfa384x_dowrid_wait(hfa384x_t *hw, u16 rid, void *riddata,
890 unsigned int riddatalen)
892 return hfa384x_dowrid(hw, DOWAIT,
893 rid, riddata, riddatalen, NULL, NULL, NULL);
897 hfa384x_dowrid_async(hfa384x_t *hw,
898 u16 rid, void *riddata, unsigned int riddatalen,
900 ctlx_usercb_t usercb, void *usercb_data)
902 return hfa384x_dowrid(hw, DOASYNC,
903 rid, riddata, riddatalen,
904 cmdcb, usercb, usercb_data);
908 hfa384x_dormem_wait(hfa384x_t *hw,
909 u16 page, u16 offset, void *data, unsigned int len)
911 return hfa384x_dormem(hw, DOWAIT,
912 page, offset, data, len, NULL, NULL, NULL);
916 hfa384x_dormem_async(hfa384x_t *hw,
917 u16 page, u16 offset, void *data, unsigned int len,
919 ctlx_usercb_t usercb, void *usercb_data)
921 return hfa384x_dormem(hw, DOASYNC,
922 page, offset, data, len,
923 cmdcb, usercb, usercb_data);
927 hfa384x_dowmem_wait(hfa384x_t *hw,
928 u16 page, u16 offset, void *data, unsigned int len)
930 return hfa384x_dowmem(hw, DOWAIT,
931 page, offset, data, len, NULL, NULL, NULL);
935 hfa384x_dowmem_async(hfa384x_t *hw,
941 ctlx_usercb_t usercb, void *usercb_data)
943 return hfa384x_dowmem(hw, DOASYNC,
944 page, offset, data, len,
945 cmdcb, usercb, usercb_data);
948 /*----------------------------------------------------------------
949 * hfa384x_cmd_initialize
951 * Issues the initialize command and sets the hw->state based
955 * hw device structure
959 * >0 f/w reported error - f/w status code
960 * <0 driver reported error
966 ----------------------------------------------------------------*/
967 int hfa384x_cmd_initialize(hfa384x_t *hw)
971 hfa384x_metacmd_t cmd;
973 cmd.cmd = HFA384x_CMDCODE_INIT;
978 result = hfa384x_docmd_wait(hw, &cmd);
980 pr_debug("cmdresp.init: status=0x%04x, resp0=0x%04x, resp1=0x%04x, resp2=0x%04x\n",
982 cmd.result.resp0, cmd.result.resp1, cmd.result.resp2);
984 for (i = 0; i < HFA384x_NUMPORTS_MAX; i++)
985 hw->port_enabled[i] = 0;
988 hw->link_status = HFA384x_LINK_NOTCONNECTED;
993 /*----------------------------------------------------------------
994 * hfa384x_cmd_disable
996 * Issues the disable command to stop communications on one of
1000 * hw device structure
1001 * macport MAC port number (host order)
1005 * >0 f/w reported failure - f/w status code
1006 * <0 driver reported error (timeout|bad arg)
1012 ----------------------------------------------------------------*/
1013 int hfa384x_cmd_disable(hfa384x_t *hw, u16 macport)
1016 hfa384x_metacmd_t cmd;
1018 cmd.cmd = HFA384x_CMD_CMDCODE_SET(HFA384x_CMDCODE_DISABLE) |
1019 HFA384x_CMD_MACPORT_SET(macport);
1024 result = hfa384x_docmd_wait(hw, &cmd);
1029 /*----------------------------------------------------------------
1030 * hfa384x_cmd_enable
1032 * Issues the enable command to enable communications on one of
1036 * hw device structure
1037 * macport MAC port number
1041 * >0 f/w reported failure - f/w status code
1042 * <0 driver reported error (timeout|bad arg)
1048 ----------------------------------------------------------------*/
1049 int hfa384x_cmd_enable(hfa384x_t *hw, u16 macport)
1052 hfa384x_metacmd_t cmd;
1054 cmd.cmd = HFA384x_CMD_CMDCODE_SET(HFA384x_CMDCODE_ENABLE) |
1055 HFA384x_CMD_MACPORT_SET(macport);
1060 result = hfa384x_docmd_wait(hw, &cmd);
1065 /*----------------------------------------------------------------
1066 * hfa384x_cmd_monitor
1068 * Enables the 'monitor mode' of the MAC. Here's the description of
1069 * monitor mode that I've received thus far:
1071 * "The "monitor mode" of operation is that the MAC passes all
1072 * frames for which the PLCP checks are correct. All received
1073 * MPDUs are passed to the host with MAC Port = 7, with a
1074 * receive status of good, FCS error, or undecryptable. Passing
1075 * certain MPDUs is a violation of the 802.11 standard, but useful
1076 * for a debugging tool." Normal communication is not possible
1077 * while monitor mode is enabled.
1080 * hw device structure
1081 * enable a code (0x0b|0x0f) that enables/disables
1082 * monitor mode. (host order)
1086 * >0 f/w reported failure - f/w status code
1087 * <0 driver reported error (timeout|bad arg)
1093 ----------------------------------------------------------------*/
1094 int hfa384x_cmd_monitor(hfa384x_t *hw, u16 enable)
1097 hfa384x_metacmd_t cmd;
1099 cmd.cmd = HFA384x_CMD_CMDCODE_SET(HFA384x_CMDCODE_MONITOR) |
1100 HFA384x_CMD_AINFO_SET(enable);
1105 result = hfa384x_docmd_wait(hw, &cmd);
1110 /*----------------------------------------------------------------
1111 * hfa384x_cmd_download
1113 * Sets the controls for the MAC controller code/data download
1114 * process. The arguments set the mode and address associated
1115 * with a download. Note that the aux registers should be enabled
1116 * prior to setting one of the download enable modes.
1119 * hw device structure
1120 * mode 0 - Disable programming and begin code exec
1121 * 1 - Enable volatile mem programming
1122 * 2 - Enable non-volatile mem programming
1123 * 3 - Program non-volatile section from NV download
1127 * highaddr For mode 1, sets the high & low order bits of
1128 * the "destination address". This address will be
1129 * the execution start address when download is
1130 * subsequently disabled.
1131 * For mode 2, sets the high & low order bits of
1132 * the destination in NV ram.
1133 * For modes 0 & 3, should be zero. (host order)
1134 * NOTE: these are CMD format.
1135 * codelen Length of the data to write in mode 2,
1136 * zero otherwise. (host order)
1140 * >0 f/w reported failure - f/w status code
1141 * <0 driver reported error (timeout|bad arg)
1147 ----------------------------------------------------------------*/
1148 int hfa384x_cmd_download(hfa384x_t *hw, u16 mode, u16 lowaddr,
1149 u16 highaddr, u16 codelen)
1152 hfa384x_metacmd_t cmd;
1154 pr_debug("mode=%d, lowaddr=0x%04x, highaddr=0x%04x, codelen=%d\n",
1155 mode, lowaddr, highaddr, codelen);
1157 cmd.cmd = (HFA384x_CMD_CMDCODE_SET(HFA384x_CMDCODE_DOWNLD) |
1158 HFA384x_CMD_PROGMODE_SET(mode));
1160 cmd.parm0 = lowaddr;
1161 cmd.parm1 = highaddr;
1162 cmd.parm2 = codelen;
1164 result = hfa384x_docmd_wait(hw, &cmd);
1169 /*----------------------------------------------------------------
1172 * Perform a reset of the hfa38xx MAC core. We assume that the hw
1173 * structure is in its "created" state. That is, it is initialized
1174 * with proper values. Note that if a reset is done after the
1175 * device has been active for awhile, the caller might have to clean
1176 * up some leftover cruft in the hw structure.
1179 * hw device structure
1180 * holdtime how long (in ms) to hold the reset
1181 * settletime how long (in ms) to wait after releasing
1191 ----------------------------------------------------------------*/
1192 int hfa384x_corereset(hfa384x_t *hw, int holdtime, int settletime, int genesis)
1196 result = usb_reset_device(hw->usb);
1198 netdev_err(hw->wlandev->netdev, "usb_reset_device() failed, result=%d.\n",
1205 /*----------------------------------------------------------------
1206 * hfa384x_usbctlx_complete_sync
1208 * Waits for a synchronous CTLX object to complete,
1209 * and then handles the response.
1212 * hw device structure
1214 * completor functor object to decide what to
1215 * do with the CTLX's result.
1219 * -ERESTARTSYS Interrupted by a signal
1221 * -ENODEV Adapter was unplugged
1222 * ??? Result from completor
1228 ----------------------------------------------------------------*/
1229 static int hfa384x_usbctlx_complete_sync(hfa384x_t *hw,
1230 hfa384x_usbctlx_t *ctlx,
1231 struct usbctlx_completor *completor)
1233 unsigned long flags;
1236 result = wait_for_completion_interruptible(&ctlx->done);
1238 spin_lock_irqsave(&hw->ctlxq.lock, flags);
1241 * We can only handle the CTLX if the USB disconnect
1242 * function has not run yet ...
1245 if (hw->wlandev->hwremoved) {
1246 spin_unlock_irqrestore(&hw->ctlxq.lock, flags);
1248 } else if (result != 0) {
1252 * We were probably interrupted, so delete
1253 * this CTLX asynchronously, kill the timers
1254 * and the URB, and then start the next
1257 * NOTE: We can only delete the timers and
1258 * the URB if this CTLX is active.
1260 if (ctlx == get_active_ctlx(hw)) {
1261 spin_unlock_irqrestore(&hw->ctlxq.lock, flags);
1263 del_singleshot_timer_sync(&hw->reqtimer);
1264 del_singleshot_timer_sync(&hw->resptimer);
1265 hw->req_timer_done = 1;
1266 hw->resp_timer_done = 1;
1267 usb_kill_urb(&hw->ctlx_urb);
1269 spin_lock_irqsave(&hw->ctlxq.lock, flags);
1274 * This scenario is so unlikely that I'm
1275 * happy with a grubby "goto" solution ...
1277 if (hw->wlandev->hwremoved)
1282 * The completion task will send this CTLX
1283 * to the reaper the next time it runs. We
1284 * are no longer in a hurry.
1287 ctlx->state = CTLX_REQ_FAILED;
1288 list_move_tail(&ctlx->list, &hw->ctlxq.completing);
1290 spin_unlock_irqrestore(&hw->ctlxq.lock, flags);
1293 hfa384x_usbctlxq_run(hw);
1295 if (ctlx->state == CTLX_COMPLETE) {
1296 result = completor->complete(completor);
1298 netdev_warn(hw->wlandev->netdev, "CTLX[%d] error: state(%s)\n",
1299 le16_to_cpu(ctlx->outbuf.type),
1300 ctlxstr(ctlx->state));
1304 list_del(&ctlx->list);
1305 spin_unlock_irqrestore(&hw->ctlxq.lock, flags);
1312 /*----------------------------------------------------------------
1315 * Constructs a command CTLX and submits it.
1317 * NOTE: Any changes to the 'post-submit' code in this function
1318 * need to be carried over to hfa384x_cbcmd() since the handling
1319 * is virtually identical.
1322 * hw device structure
1323 * mode DOWAIT or DOASYNC
1324 * cmd cmd structure. Includes all arguments and result
1325 * data points. All in host order. in host order
1326 * cmdcb command-specific callback
1327 * usercb user callback for async calls, NULL for DOWAIT calls
1328 * usercb_data user supplied data pointer for async calls, NULL
1334 * -ERESTARTSYS Awakened on signal
1335 * >0 command indicated error, Status and Resp0-2 are
1343 ----------------------------------------------------------------*/
1345 hfa384x_docmd(hfa384x_t *hw,
1347 hfa384x_metacmd_t *cmd,
1348 ctlx_cmdcb_t cmdcb, ctlx_usercb_t usercb, void *usercb_data)
1351 hfa384x_usbctlx_t *ctlx;
1353 ctlx = usbctlx_alloc();
1359 /* Initialize the command */
1360 ctlx->outbuf.cmdreq.type = cpu_to_le16(HFA384x_USB_CMDREQ);
1361 ctlx->outbuf.cmdreq.cmd = cpu_to_le16(cmd->cmd);
1362 ctlx->outbuf.cmdreq.parm0 = cpu_to_le16(cmd->parm0);
1363 ctlx->outbuf.cmdreq.parm1 = cpu_to_le16(cmd->parm1);
1364 ctlx->outbuf.cmdreq.parm2 = cpu_to_le16(cmd->parm2);
1366 ctlx->outbufsize = sizeof(ctlx->outbuf.cmdreq);
1368 pr_debug("cmdreq: cmd=0x%04x parm0=0x%04x parm1=0x%04x parm2=0x%04x\n",
1369 cmd->cmd, cmd->parm0, cmd->parm1, cmd->parm2);
1371 ctlx->reapable = mode;
1372 ctlx->cmdcb = cmdcb;
1373 ctlx->usercb = usercb;
1374 ctlx->usercb_data = usercb_data;
1376 result = hfa384x_usbctlx_submit(hw, ctlx);
1379 } else if (mode == DOWAIT) {
1380 struct usbctlx_cmd_completor completor;
1383 hfa384x_usbctlx_complete_sync(hw, ctlx,
1384 init_cmd_completor(&completor,
1396 /*----------------------------------------------------------------
1399 * Constructs a read rid CTLX and issues it.
1401 * NOTE: Any changes to the 'post-submit' code in this function
1402 * need to be carried over to hfa384x_cbrrid() since the handling
1403 * is virtually identical.
1406 * hw device structure
1407 * mode DOWAIT or DOASYNC
1408 * rid Read RID number (host order)
1409 * riddata Caller supplied buffer that MAC formatted RID.data
1410 * record will be written to for DOWAIT calls. Should
1411 * be NULL for DOASYNC calls.
1412 * riddatalen Buffer length for DOWAIT calls. Zero for DOASYNC calls.
1413 * cmdcb command callback for async calls, NULL for DOWAIT calls
1414 * usercb user callback for async calls, NULL for DOWAIT calls
1415 * usercb_data user supplied data pointer for async calls, NULL
1421 * -ERESTARTSYS Awakened on signal
1422 * -ENODATA riddatalen != macdatalen
1423 * >0 command indicated error, Status and Resp0-2 are
1429 * interrupt (DOASYNC)
1430 * process (DOWAIT or DOASYNC)
1431 ----------------------------------------------------------------*/
1433 hfa384x_dorrid(hfa384x_t *hw,
1437 unsigned int riddatalen,
1438 ctlx_cmdcb_t cmdcb, ctlx_usercb_t usercb, void *usercb_data)
1441 hfa384x_usbctlx_t *ctlx;
1443 ctlx = usbctlx_alloc();
1449 /* Initialize the command */
1450 ctlx->outbuf.rridreq.type = cpu_to_le16(HFA384x_USB_RRIDREQ);
1451 ctlx->outbuf.rridreq.frmlen =
1452 cpu_to_le16(sizeof(ctlx->outbuf.rridreq.rid));
1453 ctlx->outbuf.rridreq.rid = cpu_to_le16(rid);
1455 ctlx->outbufsize = sizeof(ctlx->outbuf.rridreq);
1457 ctlx->reapable = mode;
1458 ctlx->cmdcb = cmdcb;
1459 ctlx->usercb = usercb;
1460 ctlx->usercb_data = usercb_data;
1462 /* Submit the CTLX */
1463 result = hfa384x_usbctlx_submit(hw, ctlx);
1466 } else if (mode == DOWAIT) {
1467 struct usbctlx_rrid_completor completor;
1470 hfa384x_usbctlx_complete_sync(hw, ctlx,
1473 &ctlx->inbuf.rridresp,
1474 riddata, riddatalen));
1481 /*----------------------------------------------------------------
1484 * Constructs a write rid CTLX and issues it.
1486 * NOTE: Any changes to the 'post-submit' code in this function
1487 * need to be carried over to hfa384x_cbwrid() since the handling
1488 * is virtually identical.
1491 * hw device structure
1492 * enum cmd_mode DOWAIT or DOASYNC
1494 * riddata Data portion of RID formatted for MAC
1495 * riddatalen Length of the data portion in bytes
1496 * cmdcb command callback for async calls, NULL for DOWAIT calls
1497 * usercb user callback for async calls, NULL for DOWAIT calls
1498 * usercb_data user supplied data pointer for async calls
1502 * -ETIMEDOUT timed out waiting for register ready or
1503 * command completion
1504 * >0 command indicated error, Status and Resp0-2 are
1510 * interrupt (DOASYNC)
1511 * process (DOWAIT or DOASYNC)
1512 ----------------------------------------------------------------*/
1514 hfa384x_dowrid(hfa384x_t *hw,
1518 unsigned int riddatalen,
1519 ctlx_cmdcb_t cmdcb, ctlx_usercb_t usercb, void *usercb_data)
1522 hfa384x_usbctlx_t *ctlx;
1524 ctlx = usbctlx_alloc();
1530 /* Initialize the command */
1531 ctlx->outbuf.wridreq.type = cpu_to_le16(HFA384x_USB_WRIDREQ);
1532 ctlx->outbuf.wridreq.frmlen = cpu_to_le16((sizeof
1533 (ctlx->outbuf.wridreq.rid) +
1534 riddatalen + 1) / 2);
1535 ctlx->outbuf.wridreq.rid = cpu_to_le16(rid);
1536 memcpy(ctlx->outbuf.wridreq.data, riddata, riddatalen);
1538 ctlx->outbufsize = sizeof(ctlx->outbuf.wridreq.type) +
1539 sizeof(ctlx->outbuf.wridreq.frmlen) +
1540 sizeof(ctlx->outbuf.wridreq.rid) + riddatalen;
1542 ctlx->reapable = mode;
1543 ctlx->cmdcb = cmdcb;
1544 ctlx->usercb = usercb;
1545 ctlx->usercb_data = usercb_data;
1547 /* Submit the CTLX */
1548 result = hfa384x_usbctlx_submit(hw, ctlx);
1551 } else if (mode == DOWAIT) {
1552 struct usbctlx_cmd_completor completor;
1553 hfa384x_cmdresult_t wridresult;
1555 result = hfa384x_usbctlx_complete_sync(hw,
1559 &ctlx->inbuf.wridresp,
1567 /*----------------------------------------------------------------
1570 * Constructs a readmem CTLX and issues it.
1572 * NOTE: Any changes to the 'post-submit' code in this function
1573 * need to be carried over to hfa384x_cbrmem() since the handling
1574 * is virtually identical.
1577 * hw device structure
1578 * mode DOWAIT or DOASYNC
1579 * page MAC address space page (CMD format)
1580 * offset MAC address space offset
1581 * data Ptr to data buffer to receive read
1582 * len Length of the data to read (max == 2048)
1583 * cmdcb command callback for async calls, NULL for DOWAIT calls
1584 * usercb user callback for async calls, NULL for DOWAIT calls
1585 * usercb_data user supplied data pointer for async calls
1589 * -ETIMEDOUT timed out waiting for register ready or
1590 * command completion
1591 * >0 command indicated error, Status and Resp0-2 are
1597 * interrupt (DOASYNC)
1598 * process (DOWAIT or DOASYNC)
1599 ----------------------------------------------------------------*/
1601 hfa384x_dormem(hfa384x_t *hw,
1607 ctlx_cmdcb_t cmdcb, ctlx_usercb_t usercb, void *usercb_data)
1610 hfa384x_usbctlx_t *ctlx;
1612 ctlx = usbctlx_alloc();
1618 /* Initialize the command */
1619 ctlx->outbuf.rmemreq.type = cpu_to_le16(HFA384x_USB_RMEMREQ);
1620 ctlx->outbuf.rmemreq.frmlen =
1621 cpu_to_le16(sizeof(ctlx->outbuf.rmemreq.offset) +
1622 sizeof(ctlx->outbuf.rmemreq.page) + len);
1623 ctlx->outbuf.rmemreq.offset = cpu_to_le16(offset);
1624 ctlx->outbuf.rmemreq.page = cpu_to_le16(page);
1626 ctlx->outbufsize = sizeof(ctlx->outbuf.rmemreq);
1628 pr_debug("type=0x%04x frmlen=%d offset=0x%04x page=0x%04x\n",
1629 ctlx->outbuf.rmemreq.type,
1630 ctlx->outbuf.rmemreq.frmlen,
1631 ctlx->outbuf.rmemreq.offset, ctlx->outbuf.rmemreq.page);
1633 pr_debug("pktsize=%zd\n", ROUNDUP64(sizeof(ctlx->outbuf.rmemreq)));
1635 ctlx->reapable = mode;
1636 ctlx->cmdcb = cmdcb;
1637 ctlx->usercb = usercb;
1638 ctlx->usercb_data = usercb_data;
1640 result = hfa384x_usbctlx_submit(hw, ctlx);
1643 } else if (mode == DOWAIT) {
1644 struct usbctlx_rmem_completor completor;
1647 hfa384x_usbctlx_complete_sync(hw, ctlx,
1650 &ctlx->inbuf.rmemresp, data,
1658 /*----------------------------------------------------------------
1661 * Constructs a writemem CTLX and issues it.
1663 * NOTE: Any changes to the 'post-submit' code in this function
1664 * need to be carried over to hfa384x_cbwmem() since the handling
1665 * is virtually identical.
1668 * hw device structure
1669 * mode DOWAIT or DOASYNC
1670 * page MAC address space page (CMD format)
1671 * offset MAC address space offset
1672 * data Ptr to data buffer containing write data
1673 * len Length of the data to read (max == 2048)
1674 * cmdcb command callback for async calls, NULL for DOWAIT calls
1675 * usercb user callback for async calls, NULL for DOWAIT calls
1676 * usercb_data user supplied data pointer for async calls.
1680 * -ETIMEDOUT timed out waiting for register ready or
1681 * command completion
1682 * >0 command indicated error, Status and Resp0-2 are
1688 * interrupt (DOWAIT)
1689 * process (DOWAIT or DOASYNC)
1690 ----------------------------------------------------------------*/
1692 hfa384x_dowmem(hfa384x_t *hw,
1698 ctlx_cmdcb_t cmdcb, ctlx_usercb_t usercb, void *usercb_data)
1701 hfa384x_usbctlx_t *ctlx;
1703 pr_debug("page=0x%04x offset=0x%04x len=%d\n", page, offset, len);
1705 ctlx = usbctlx_alloc();
1711 /* Initialize the command */
1712 ctlx->outbuf.wmemreq.type = cpu_to_le16(HFA384x_USB_WMEMREQ);
1713 ctlx->outbuf.wmemreq.frmlen =
1714 cpu_to_le16(sizeof(ctlx->outbuf.wmemreq.offset) +
1715 sizeof(ctlx->outbuf.wmemreq.page) + len);
1716 ctlx->outbuf.wmemreq.offset = cpu_to_le16(offset);
1717 ctlx->outbuf.wmemreq.page = cpu_to_le16(page);
1718 memcpy(ctlx->outbuf.wmemreq.data, data, len);
1720 ctlx->outbufsize = sizeof(ctlx->outbuf.wmemreq.type) +
1721 sizeof(ctlx->outbuf.wmemreq.frmlen) +
1722 sizeof(ctlx->outbuf.wmemreq.offset) +
1723 sizeof(ctlx->outbuf.wmemreq.page) + len;
1725 ctlx->reapable = mode;
1726 ctlx->cmdcb = cmdcb;
1727 ctlx->usercb = usercb;
1728 ctlx->usercb_data = usercb_data;
1730 result = hfa384x_usbctlx_submit(hw, ctlx);
1733 } else if (mode == DOWAIT) {
1734 struct usbctlx_cmd_completor completor;
1735 hfa384x_cmdresult_t wmemresult;
1737 result = hfa384x_usbctlx_complete_sync(hw,
1741 &ctlx->inbuf.wmemresp,
1749 /*----------------------------------------------------------------
1750 * hfa384x_drvr_commtallies
1752 * Send a commtallies inquiry to the MAC. Note that this is an async
1753 * call that will result in an info frame arriving sometime later.
1756 * hw device structure
1765 ----------------------------------------------------------------*/
1766 int hfa384x_drvr_commtallies(hfa384x_t *hw)
1768 hfa384x_metacmd_t cmd;
1770 cmd.cmd = HFA384x_CMDCODE_INQ;
1771 cmd.parm0 = HFA384x_IT_COMMTALLIES;
1775 hfa384x_docmd_async(hw, &cmd, NULL, NULL, NULL);
1780 /*----------------------------------------------------------------
1781 * hfa384x_drvr_disable
1783 * Issues the disable command to stop communications on one of
1784 * the MACs 'ports'. Only macport 0 is valid for stations.
1785 * APs may also disable macports 1-6. Only ports that have been
1786 * previously enabled may be disabled.
1789 * hw device structure
1790 * macport MAC port number (host order)
1794 * >0 f/w reported failure - f/w status code
1795 * <0 driver reported error (timeout|bad arg)
1801 ----------------------------------------------------------------*/
1802 int hfa384x_drvr_disable(hfa384x_t *hw, u16 macport)
1806 if ((!hw->isap && macport != 0) ||
1807 (hw->isap && !(macport <= HFA384x_PORTID_MAX)) ||
1808 !(hw->port_enabled[macport])) {
1811 result = hfa384x_cmd_disable(hw, macport);
1813 hw->port_enabled[macport] = 0;
1818 /*----------------------------------------------------------------
1819 * hfa384x_drvr_enable
1821 * Issues the enable command to enable communications on one of
1822 * the MACs 'ports'. Only macport 0 is valid for stations.
1823 * APs may also enable macports 1-6. Only ports that are currently
1824 * disabled may be enabled.
1827 * hw device structure
1828 * macport MAC port number
1832 * >0 f/w reported failure - f/w status code
1833 * <0 driver reported error (timeout|bad arg)
1839 ----------------------------------------------------------------*/
1840 int hfa384x_drvr_enable(hfa384x_t *hw, u16 macport)
1844 if ((!hw->isap && macport != 0) ||
1845 (hw->isap && !(macport <= HFA384x_PORTID_MAX)) ||
1846 (hw->port_enabled[macport])) {
1849 result = hfa384x_cmd_enable(hw, macport);
1851 hw->port_enabled[macport] = 1;
1856 /*----------------------------------------------------------------
1857 * hfa384x_drvr_flashdl_enable
1859 * Begins the flash download state. Checks to see that we're not
1860 * already in a download state and that a port isn't enabled.
1861 * Sets the download state and retrieves the flash download
1862 * buffer location, buffer size, and timeout length.
1865 * hw device structure
1869 * >0 f/w reported error - f/w status code
1870 * <0 driver reported error
1876 ----------------------------------------------------------------*/
1877 int hfa384x_drvr_flashdl_enable(hfa384x_t *hw)
1882 /* Check that a port isn't active */
1883 for (i = 0; i < HFA384x_PORTID_MAX; i++) {
1884 if (hw->port_enabled[i]) {
1885 pr_debug("called when port enabled.\n");
1890 /* Check that we're not already in a download state */
1891 if (hw->dlstate != HFA384x_DLSTATE_DISABLED)
1894 /* Retrieve the buffer loc&size and timeout */
1895 result = hfa384x_drvr_getconfig(hw, HFA384x_RID_DOWNLOADBUFFER,
1896 &(hw->bufinfo), sizeof(hw->bufinfo));
1900 hw->bufinfo.page = le16_to_cpu(hw->bufinfo.page);
1901 hw->bufinfo.offset = le16_to_cpu(hw->bufinfo.offset);
1902 hw->bufinfo.len = le16_to_cpu(hw->bufinfo.len);
1903 result = hfa384x_drvr_getconfig16(hw, HFA384x_RID_MAXLOADTIME,
1908 hw->dltimeout = le16_to_cpu(hw->dltimeout);
1910 pr_debug("flashdl_enable\n");
1912 hw->dlstate = HFA384x_DLSTATE_FLASHENABLED;
1917 /*----------------------------------------------------------------
1918 * hfa384x_drvr_flashdl_disable
1920 * Ends the flash download state. Note that this will cause the MAC
1921 * firmware to restart.
1924 * hw device structure
1928 * >0 f/w reported error - f/w status code
1929 * <0 driver reported error
1935 ----------------------------------------------------------------*/
1936 int hfa384x_drvr_flashdl_disable(hfa384x_t *hw)
1938 /* Check that we're already in the download state */
1939 if (hw->dlstate != HFA384x_DLSTATE_FLASHENABLED)
1942 pr_debug("flashdl_enable\n");
1944 /* There isn't much we can do at this point, so I don't */
1945 /* bother w/ the return value */
1946 hfa384x_cmd_download(hw, HFA384x_PROGMODE_DISABLE, 0, 0, 0);
1947 hw->dlstate = HFA384x_DLSTATE_DISABLED;
1952 /*----------------------------------------------------------------
1953 * hfa384x_drvr_flashdl_write
1955 * Performs a FLASH download of a chunk of data. First checks to see
1956 * that we're in the FLASH download state, then sets the download
1957 * mode, uses the aux functions to 1) copy the data to the flash
1958 * buffer, 2) sets the download 'write flash' mode, 3) readback and
1959 * compare. Lather rinse, repeat as many times an necessary to get
1960 * all the given data into flash.
1961 * When all data has been written using this function (possibly
1962 * repeatedly), call drvr_flashdl_disable() to end the download state
1963 * and restart the MAC.
1966 * hw device structure
1967 * daddr Card address to write to. (host order)
1968 * buf Ptr to data to write.
1969 * len Length of data (host order).
1973 * >0 f/w reported error - f/w status code
1974 * <0 driver reported error
1980 ----------------------------------------------------------------*/
1981 int hfa384x_drvr_flashdl_write(hfa384x_t *hw, u32 daddr, void *buf, u32 len)
1998 pr_debug("daddr=0x%08x len=%d\n", daddr, len);
2000 /* Check that we're in the flash download state */
2001 if (hw->dlstate != HFA384x_DLSTATE_FLASHENABLED)
2004 netdev_info(hw->wlandev->netdev,
2005 "Download %d bytes to flash @0x%06x\n", len, daddr);
2007 /* Convert to flat address for arithmetic */
2008 /* NOTE: dlbuffer RID stores the address in AUX format */
2010 HFA384x_ADDR_AUX_MKFLAT(hw->bufinfo.page, hw->bufinfo.offset);
2011 pr_debug("dlbuf.page=0x%04x dlbuf.offset=0x%04x dlbufaddr=0x%08x\n",
2012 hw->bufinfo.page, hw->bufinfo.offset, dlbufaddr);
2013 /* Calculations to determine how many fills of the dlbuffer to do
2014 * and how many USB wmemreq's to do for each fill. At this point
2015 * in time, the dlbuffer size and the wmemreq size are the same.
2016 * Therefore, nwrites should always be 1. The extra complexity
2017 * here is a hedge against future changes.
2020 /* Figure out how many times to do the flash programming */
2021 nburns = len / hw->bufinfo.len;
2022 nburns += (len % hw->bufinfo.len) ? 1 : 0;
2024 /* For each flash program cycle, how many USB wmemreq's are needed? */
2025 nwrites = hw->bufinfo.len / HFA384x_USB_RWMEM_MAXLEN;
2026 nwrites += (hw->bufinfo.len % HFA384x_USB_RWMEM_MAXLEN) ? 1 : 0;
2029 for (i = 0; i < nburns; i++) {
2030 /* Get the dest address and len */
2031 burnlen = (len - (hw->bufinfo.len * i)) > hw->bufinfo.len ?
2032 hw->bufinfo.len : (len - (hw->bufinfo.len * i));
2033 burndaddr = daddr + (hw->bufinfo.len * i);
2034 burnlo = HFA384x_ADDR_CMD_MKOFF(burndaddr);
2035 burnhi = HFA384x_ADDR_CMD_MKPAGE(burndaddr);
2037 netdev_info(hw->wlandev->netdev, "Writing %d bytes to flash @0x%06x\n",
2038 burnlen, burndaddr);
2040 /* Set the download mode */
2041 result = hfa384x_cmd_download(hw, HFA384x_PROGMODE_NV,
2042 burnlo, burnhi, burnlen);
2044 netdev_err(hw->wlandev->netdev,
2045 "download(NV,lo=%x,hi=%x,len=%x) cmd failed, result=%d. Aborting d/l\n",
2046 burnlo, burnhi, burnlen, result);
2050 /* copy the data to the flash download buffer */
2051 for (j = 0; j < nwrites; j++) {
2053 (i * hw->bufinfo.len) +
2054 (j * HFA384x_USB_RWMEM_MAXLEN);
2056 writepage = HFA384x_ADDR_CMD_MKPAGE(dlbufaddr +
2057 (j * HFA384x_USB_RWMEM_MAXLEN));
2058 writeoffset = HFA384x_ADDR_CMD_MKOFF(dlbufaddr +
2059 (j * HFA384x_USB_RWMEM_MAXLEN));
2061 writelen = burnlen - (j * HFA384x_USB_RWMEM_MAXLEN);
2062 writelen = writelen > HFA384x_USB_RWMEM_MAXLEN ?
2063 HFA384x_USB_RWMEM_MAXLEN : writelen;
2065 result = hfa384x_dowmem_wait(hw,
2068 writebuf, writelen);
2071 /* set the download 'write flash' mode */
2072 result = hfa384x_cmd_download(hw,
2073 HFA384x_PROGMODE_NVWRITE,
2076 netdev_err(hw->wlandev->netdev,
2077 "download(NVWRITE,lo=%x,hi=%x,len=%x) cmd failed, result=%d. Aborting d/l\n",
2078 burnlo, burnhi, burnlen, result);
2082 /* TODO: We really should do a readback and compare. */
2087 /* Leave the firmware in the 'post-prog' mode. flashdl_disable will */
2088 /* actually disable programming mode. Remember, that will cause the */
2089 /* the firmware to effectively reset itself. */
2094 /*----------------------------------------------------------------
2095 * hfa384x_drvr_getconfig
2097 * Performs the sequence necessary to read a config/info item.
2100 * hw device structure
2101 * rid config/info record id (host order)
2102 * buf host side record buffer. Upon return it will
2103 * contain the body portion of the record (minus the
2105 * len buffer length (in bytes, should match record length)
2109 * >0 f/w reported error - f/w status code
2110 * <0 driver reported error
2111 * -ENODATA length mismatch between argument and retrieved
2118 ----------------------------------------------------------------*/
2119 int hfa384x_drvr_getconfig(hfa384x_t *hw, u16 rid, void *buf, u16 len)
2121 return hfa384x_dorrid_wait(hw, rid, buf, len);
2124 /*----------------------------------------------------------------
2125 * hfa384x_drvr_getconfig_async
2127 * Performs the sequence necessary to perform an async read of
2128 * of a config/info item.
2131 * hw device structure
2132 * rid config/info record id (host order)
2133 * buf host side record buffer. Upon return it will
2134 * contain the body portion of the record (minus the
2136 * len buffer length (in bytes, should match record length)
2137 * cbfn caller supplied callback, called when the command
2138 * is done (successful or not).
2139 * cbfndata pointer to some caller supplied data that will be
2140 * passed in as an argument to the cbfn.
2143 * nothing the cbfn gets a status argument identifying if
2146 * Queues an hfa384x_usbcmd_t for subsequent execution.
2150 ----------------------------------------------------------------*/
2152 hfa384x_drvr_getconfig_async(hfa384x_t *hw,
2153 u16 rid, ctlx_usercb_t usercb, void *usercb_data)
2155 return hfa384x_dorrid_async(hw, rid, NULL, 0,
2156 hfa384x_cb_rrid, usercb, usercb_data);
2159 /*----------------------------------------------------------------
2160 * hfa384x_drvr_setconfig_async
2162 * Performs the sequence necessary to write a config/info item.
2165 * hw device structure
2166 * rid config/info record id (in host order)
2167 * buf host side record buffer
2168 * len buffer length (in bytes)
2169 * usercb completion callback
2170 * usercb_data completion callback argument
2174 * >0 f/w reported error - f/w status code
2175 * <0 driver reported error
2181 ----------------------------------------------------------------*/
2183 hfa384x_drvr_setconfig_async(hfa384x_t *hw,
2186 u16 len, ctlx_usercb_t usercb, void *usercb_data)
2188 return hfa384x_dowrid_async(hw, rid, buf, len,
2189 hfa384x_cb_status, usercb, usercb_data);
2192 /*----------------------------------------------------------------
2193 * hfa384x_drvr_ramdl_disable
2195 * Ends the ram download state.
2198 * hw device structure
2202 * >0 f/w reported error - f/w status code
2203 * <0 driver reported error
2209 ----------------------------------------------------------------*/
2210 int hfa384x_drvr_ramdl_disable(hfa384x_t *hw)
2212 /* Check that we're already in the download state */
2213 if (hw->dlstate != HFA384x_DLSTATE_RAMENABLED)
2216 pr_debug("ramdl_disable()\n");
2218 /* There isn't much we can do at this point, so I don't */
2219 /* bother w/ the return value */
2220 hfa384x_cmd_download(hw, HFA384x_PROGMODE_DISABLE, 0, 0, 0);
2221 hw->dlstate = HFA384x_DLSTATE_DISABLED;
2226 /*----------------------------------------------------------------
2227 * hfa384x_drvr_ramdl_enable
2229 * Begins the ram download state. Checks to see that we're not
2230 * already in a download state and that a port isn't enabled.
2231 * Sets the download state and calls cmd_download with the
2232 * ENABLE_VOLATILE subcommand and the exeaddr argument.
2235 * hw device structure
2236 * exeaddr the card execution address that will be
2237 * jumped to when ramdl_disable() is called
2242 * >0 f/w reported error - f/w status code
2243 * <0 driver reported error
2249 ----------------------------------------------------------------*/
2250 int hfa384x_drvr_ramdl_enable(hfa384x_t *hw, u32 exeaddr)
2257 /* Check that a port isn't active */
2258 for (i = 0; i < HFA384x_PORTID_MAX; i++) {
2259 if (hw->port_enabled[i]) {
2260 netdev_err(hw->wlandev->netdev,
2261 "Can't download with a macport enabled.\n");
2266 /* Check that we're not already in a download state */
2267 if (hw->dlstate != HFA384x_DLSTATE_DISABLED) {
2268 netdev_err(hw->wlandev->netdev, "Download state not disabled.\n");
2272 pr_debug("ramdl_enable, exeaddr=0x%08x\n", exeaddr);
2274 /* Call the download(1,addr) function */
2275 lowaddr = HFA384x_ADDR_CMD_MKOFF(exeaddr);
2276 hiaddr = HFA384x_ADDR_CMD_MKPAGE(exeaddr);
2278 result = hfa384x_cmd_download(hw, HFA384x_PROGMODE_RAM,
2279 lowaddr, hiaddr, 0);
2282 /* Set the download state */
2283 hw->dlstate = HFA384x_DLSTATE_RAMENABLED;
2285 pr_debug("cmd_download(0x%04x, 0x%04x) failed, result=%d.\n",
2286 lowaddr, hiaddr, result);
2292 /*----------------------------------------------------------------
2293 * hfa384x_drvr_ramdl_write
2295 * Performs a RAM download of a chunk of data. First checks to see
2296 * that we're in the RAM download state, then uses the [read|write]mem USB
2297 * commands to 1) copy the data, 2) readback and compare. The download
2298 * state is unaffected. When all data has been written using
2299 * this function, call drvr_ramdl_disable() to end the download state
2300 * and restart the MAC.
2303 * hw device structure
2304 * daddr Card address to write to. (host order)
2305 * buf Ptr to data to write.
2306 * len Length of data (host order).
2310 * >0 f/w reported error - f/w status code
2311 * <0 driver reported error
2317 ----------------------------------------------------------------*/
2318 int hfa384x_drvr_ramdl_write(hfa384x_t *hw, u32 daddr, void *buf, u32 len)
2329 /* Check that we're in the ram download state */
2330 if (hw->dlstate != HFA384x_DLSTATE_RAMENABLED)
2333 netdev_info(hw->wlandev->netdev, "Writing %d bytes to ram @0x%06x\n",
2336 /* How many dowmem calls? */
2337 nwrites = len / HFA384x_USB_RWMEM_MAXLEN;
2338 nwrites += len % HFA384x_USB_RWMEM_MAXLEN ? 1 : 0;
2340 /* Do blocking wmem's */
2341 for (i = 0; i < nwrites; i++) {
2342 /* make address args */
2343 curraddr = daddr + (i * HFA384x_USB_RWMEM_MAXLEN);
2344 currpage = HFA384x_ADDR_CMD_MKPAGE(curraddr);
2345 curroffset = HFA384x_ADDR_CMD_MKOFF(curraddr);
2346 currlen = len - (i * HFA384x_USB_RWMEM_MAXLEN);
2347 if (currlen > HFA384x_USB_RWMEM_MAXLEN)
2348 currlen = HFA384x_USB_RWMEM_MAXLEN;
2350 /* Do blocking ctlx */
2351 result = hfa384x_dowmem_wait(hw,
2355 (i * HFA384x_USB_RWMEM_MAXLEN),
2361 /* TODO: We really should have a readback. */
2367 /*----------------------------------------------------------------
2368 * hfa384x_drvr_readpda
2370 * Performs the sequence to read the PDA space. Note there is no
2371 * drvr_writepda() function. Writing a PDA is
2372 * generally implemented by a calling component via calls to
2373 * cmd_download and writing to the flash download buffer via the
2377 * hw device structure
2378 * buf buffer to store PDA in
2383 * >0 f/w reported error - f/w status code
2384 * <0 driver reported error
2385 * -ETIMEDOUT timeout waiting for the cmd regs to become
2386 * available, or waiting for the control reg
2387 * to indicate the Aux port is enabled.
2388 * -ENODATA the buffer does NOT contain a valid PDA.
2389 * Either the card PDA is bad, or the auxdata
2390 * reads are giving us garbage.
2396 * process or non-card interrupt.
2397 ----------------------------------------------------------------*/
2398 int hfa384x_drvr_readpda(hfa384x_t *hw, void *buf, unsigned int len)
2404 int currpdr = 0; /* word offset of the current pdr */
2406 u16 pdrlen; /* pdr length in bytes, host order */
2407 u16 pdrcode; /* pdr code, host order */
2415 HFA3842_PDA_BASE, 0}, {
2416 HFA3841_PDA_BASE, 0}, {
2417 HFA3841_PDA_BOGUS_BASE, 0}
2420 /* Read the pda from each known address. */
2421 for (i = 0; i < ARRAY_SIZE(pdaloc); i++) {
2423 currpage = HFA384x_ADDR_CMD_MKPAGE(pdaloc[i].cardaddr);
2424 curroffset = HFA384x_ADDR_CMD_MKOFF(pdaloc[i].cardaddr);
2426 /* units of bytes */
2427 result = hfa384x_dormem_wait(hw, currpage, curroffset, buf,
2431 netdev_warn(hw->wlandev->netdev,
2432 "Read from index %zd failed, continuing\n",
2437 /* Test for garbage */
2438 pdaok = 1; /* initially assume good */
2440 while (pdaok && morepdrs) {
2441 pdrlen = le16_to_cpu(pda[currpdr]) * 2;
2442 pdrcode = le16_to_cpu(pda[currpdr + 1]);
2443 /* Test the record length */
2444 if (pdrlen > HFA384x_PDR_LEN_MAX || pdrlen == 0) {
2445 netdev_err(hw->wlandev->netdev,
2446 "pdrlen invalid=%d\n", pdrlen);
2451 if (!hfa384x_isgood_pdrcode(pdrcode)) {
2452 netdev_err(hw->wlandev->netdev, "pdrcode invalid=%d\n",
2457 /* Test for completion */
2458 if (pdrcode == HFA384x_PDR_END_OF_PDA)
2461 /* Move to the next pdr (if necessary) */
2463 /* note the access to pda[], need words here */
2464 currpdr += le16_to_cpu(pda[currpdr]) + 1;
2468 netdev_info(hw->wlandev->netdev,
2469 "PDA Read from 0x%08x in %s space.\n",
2471 pdaloc[i].auxctl == 0 ? "EXTDS" :
2472 pdaloc[i].auxctl == 1 ? "NV" :
2473 pdaloc[i].auxctl == 2 ? "PHY" :
2474 pdaloc[i].auxctl == 3 ? "ICSRAM" :
2479 result = pdaok ? 0 : -ENODATA;
2482 pr_debug("Failure: pda is not okay\n");
2487 /*----------------------------------------------------------------
2488 * hfa384x_drvr_setconfig
2490 * Performs the sequence necessary to write a config/info item.
2493 * hw device structure
2494 * rid config/info record id (in host order)
2495 * buf host side record buffer
2496 * len buffer length (in bytes)
2500 * >0 f/w reported error - f/w status code
2501 * <0 driver reported error
2507 ----------------------------------------------------------------*/
2508 int hfa384x_drvr_setconfig(hfa384x_t *hw, u16 rid, void *buf, u16 len)
2510 return hfa384x_dowrid_wait(hw, rid, buf, len);
2513 /*----------------------------------------------------------------
2514 * hfa384x_drvr_start
2516 * Issues the MAC initialize command, sets up some data structures,
2517 * and enables the interrupts. After this function completes, the
2518 * low-level stuff should be ready for any/all commands.
2521 * hw device structure
2524 * >0 f/w reported error - f/w status code
2525 * <0 driver reported error
2531 ----------------------------------------------------------------*/
2533 int hfa384x_drvr_start(hfa384x_t *hw)
2535 int result, result1, result2;
2540 /* Clear endpoint stalls - but only do this if the endpoint
2541 * is showing a stall status. Some prism2 cards seem to behave
2542 * badly if a clear_halt is called when the endpoint is already
2546 usb_get_status(hw->usb, USB_RECIP_ENDPOINT, hw->endp_in, &status);
2548 netdev_err(hw->wlandev->netdev, "Cannot get bulk in endpoint status.\n");
2551 if ((status == 1) && usb_clear_halt(hw->usb, hw->endp_in))
2552 netdev_err(hw->wlandev->netdev, "Failed to reset bulk in endpoint.\n");
2555 usb_get_status(hw->usb, USB_RECIP_ENDPOINT, hw->endp_out, &status);
2557 netdev_err(hw->wlandev->netdev, "Cannot get bulk out endpoint status.\n");
2560 if ((status == 1) && usb_clear_halt(hw->usb, hw->endp_out))
2561 netdev_err(hw->wlandev->netdev, "Failed to reset bulk out endpoint.\n");
2563 /* Synchronous unlink, in case we're trying to restart the driver */
2564 usb_kill_urb(&hw->rx_urb);
2566 /* Post the IN urb */
2567 result = submit_rx_urb(hw, GFP_KERNEL);
2569 netdev_err(hw->wlandev->netdev,
2570 "Fatal, failed to submit RX URB, result=%d\n",
2575 /* Call initialize twice, with a 1 second sleep in between.
2576 * This is a nasty work-around since many prism2 cards seem to
2577 * need time to settle after an init from cold. The second
2578 * call to initialize in theory is not necessary - but we call
2579 * it anyway as a double insurance policy:
2580 * 1) If the first init should fail, the second may well succeed
2581 * and the card can still be used
2582 * 2) It helps ensures all is well with the card after the first
2583 * init and settle time.
2585 result1 = hfa384x_cmd_initialize(hw);
2587 result = hfa384x_cmd_initialize(hw);
2591 netdev_err(hw->wlandev->netdev,
2592 "cmd_initialize() failed on two attempts, results %d and %d\n",
2594 usb_kill_urb(&hw->rx_urb);
2597 pr_debug("First cmd_initialize() failed (result %d),\n",
2599 pr_debug("but second attempt succeeded. All should be ok\n");
2601 } else if (result2 != 0) {
2602 netdev_warn(hw->wlandev->netdev, "First cmd_initialize() succeeded, but second attempt failed (result=%d)\n",
2604 netdev_warn(hw->wlandev->netdev,
2605 "Most likely the card will be functional\n");
2609 hw->state = HFA384x_STATE_RUNNING;
2615 /*----------------------------------------------------------------
2618 * Shuts down the MAC to the point where it is safe to unload the
2619 * driver. Any subsystem that may be holding a data or function
2620 * ptr into the driver must be cleared/deinitialized.
2623 * hw device structure
2626 * >0 f/w reported error - f/w status code
2627 * <0 driver reported error
2633 ----------------------------------------------------------------*/
2634 int hfa384x_drvr_stop(hfa384x_t *hw)
2640 /* There's no need for spinlocks here. The USB "disconnect"
2641 * function sets this "removed" flag and then calls us.
2643 if (!hw->wlandev->hwremoved) {
2644 /* Call initialize to leave the MAC in its 'reset' state */
2645 hfa384x_cmd_initialize(hw);
2647 /* Cancel the rxurb */
2648 usb_kill_urb(&hw->rx_urb);
2651 hw->link_status = HFA384x_LINK_NOTCONNECTED;
2652 hw->state = HFA384x_STATE_INIT;
2654 del_timer_sync(&hw->commsqual_timer);
2656 /* Clear all the port status */
2657 for (i = 0; i < HFA384x_NUMPORTS_MAX; i++)
2658 hw->port_enabled[i] = 0;
2663 /*----------------------------------------------------------------
2664 * hfa384x_drvr_txframe
2666 * Takes a frame from prism2sta and queues it for transmission.
2669 * hw device structure
2670 * skb packet buffer struct. Contains an 802.11
2672 * p80211_hdr points to the 802.11 header for the packet.
2674 * 0 Success and more buffs available
2675 * 1 Success but no more buffs
2676 * 2 Allocation failure
2677 * 4 Buffer full or queue busy
2683 ----------------------------------------------------------------*/
2684 int hfa384x_drvr_txframe(hfa384x_t *hw, struct sk_buff *skb,
2685 union p80211_hdr *p80211_hdr,
2686 struct p80211_metawep *p80211_wep)
2688 int usbpktlen = sizeof(hfa384x_tx_frame_t);
2693 if (hw->tx_urb.status == -EINPROGRESS) {
2694 netdev_warn(hw->wlandev->netdev, "TX URB already in use\n");
2699 /* Build Tx frame structure */
2700 /* Set up the control field */
2701 memset(&hw->txbuff.txfrm.desc, 0, sizeof(hw->txbuff.txfrm.desc));
2703 /* Setup the usb type field */
2704 hw->txbuff.type = cpu_to_le16(HFA384x_USB_TXFRM);
2706 /* Set up the sw_support field to identify this frame */
2707 hw->txbuff.txfrm.desc.sw_support = 0x0123;
2709 /* Tx complete and Tx exception disable per dleach. Might be causing
2712 /* #define DOEXC SLP -- doboth breaks horribly under load, doexc less so. */
2714 hw->txbuff.txfrm.desc.tx_control =
2715 HFA384x_TX_MACPORT_SET(0) | HFA384x_TX_STRUCTYPE_SET(1) |
2716 HFA384x_TX_TXEX_SET(1) | HFA384x_TX_TXOK_SET(1);
2717 #elif defined(DOEXC)
2718 hw->txbuff.txfrm.desc.tx_control =
2719 HFA384x_TX_MACPORT_SET(0) | HFA384x_TX_STRUCTYPE_SET(1) |
2720 HFA384x_TX_TXEX_SET(1) | HFA384x_TX_TXOK_SET(0);
2722 hw->txbuff.txfrm.desc.tx_control =
2723 HFA384x_TX_MACPORT_SET(0) | HFA384x_TX_STRUCTYPE_SET(1) |
2724 HFA384x_TX_TXEX_SET(0) | HFA384x_TX_TXOK_SET(0);
2726 hw->txbuff.txfrm.desc.tx_control =
2727 cpu_to_le16(hw->txbuff.txfrm.desc.tx_control);
2729 /* copy the header over to the txdesc */
2730 memcpy(&(hw->txbuff.txfrm.desc.frame_control), p80211_hdr,
2731 sizeof(union p80211_hdr));
2733 /* if we're using host WEP, increase size by IV+ICV */
2734 if (p80211_wep->data) {
2735 hw->txbuff.txfrm.desc.data_len = cpu_to_le16(skb->len + 8);
2738 hw->txbuff.txfrm.desc.data_len = cpu_to_le16(skb->len);
2741 usbpktlen += skb->len;
2743 /* copy over the WEP IV if we are using host WEP */
2744 ptr = hw->txbuff.txfrm.data;
2745 if (p80211_wep->data) {
2746 memcpy(ptr, p80211_wep->iv, sizeof(p80211_wep->iv));
2747 ptr += sizeof(p80211_wep->iv);
2748 memcpy(ptr, p80211_wep->data, skb->len);
2750 memcpy(ptr, skb->data, skb->len);
2752 /* copy over the packet data */
2755 /* copy over the WEP ICV if we are using host WEP */
2756 if (p80211_wep->data)
2757 memcpy(ptr, p80211_wep->icv, sizeof(p80211_wep->icv));
2759 /* Send the USB packet */
2760 usb_fill_bulk_urb(&(hw->tx_urb), hw->usb,
2762 &(hw->txbuff), ROUNDUP64(usbpktlen),
2763 hfa384x_usbout_callback, hw->wlandev);
2764 hw->tx_urb.transfer_flags |= USB_QUEUE_BULK;
2767 ret = submit_tx_urb(hw, &hw->tx_urb, GFP_ATOMIC);
2769 netdev_err(hw->wlandev->netdev,
2770 "submit_tx_urb() failed, error=%d\n", ret);
2778 void hfa384x_tx_timeout(wlandevice_t *wlandev)
2780 hfa384x_t *hw = wlandev->priv;
2781 unsigned long flags;
2783 spin_lock_irqsave(&hw->ctlxq.lock, flags);
2785 if (!hw->wlandev->hwremoved) {
2788 sched = !test_and_set_bit(WORK_TX_HALT, &hw->usb_flags);
2789 sched |= !test_and_set_bit(WORK_RX_HALT, &hw->usb_flags);
2791 schedule_work(&hw->usb_work);
2794 spin_unlock_irqrestore(&hw->ctlxq.lock, flags);
2797 /*----------------------------------------------------------------
2798 * hfa384x_usbctlx_reaper_task
2800 * Tasklet to delete dead CTLX objects
2803 * data ptr to a hfa384x_t
2809 ----------------------------------------------------------------*/
2810 static void hfa384x_usbctlx_reaper_task(unsigned long data)
2812 hfa384x_t *hw = (hfa384x_t *)data;
2813 struct list_head *entry;
2814 struct list_head *temp;
2815 unsigned long flags;
2817 spin_lock_irqsave(&hw->ctlxq.lock, flags);
2819 /* This list is guaranteed to be empty if someone
2820 * has unplugged the adapter.
2822 list_for_each_safe(entry, temp, &hw->ctlxq.reapable) {
2823 hfa384x_usbctlx_t *ctlx;
2825 ctlx = list_entry(entry, hfa384x_usbctlx_t, list);
2826 list_del(&ctlx->list);
2830 spin_unlock_irqrestore(&hw->ctlxq.lock, flags);
2833 /*----------------------------------------------------------------
2834 * hfa384x_usbctlx_completion_task
2836 * Tasklet to call completion handlers for returned CTLXs
2839 * data ptr to hfa384x_t
2846 ----------------------------------------------------------------*/
2847 static void hfa384x_usbctlx_completion_task(unsigned long data)
2849 hfa384x_t *hw = (hfa384x_t *)data;
2850 struct list_head *entry;
2851 struct list_head *temp;
2852 unsigned long flags;
2856 spin_lock_irqsave(&hw->ctlxq.lock, flags);
2858 /* This list is guaranteed to be empty if someone
2859 * has unplugged the adapter ...
2861 list_for_each_safe(entry, temp, &hw->ctlxq.completing) {
2862 hfa384x_usbctlx_t *ctlx;
2864 ctlx = list_entry(entry, hfa384x_usbctlx_t, list);
2866 /* Call the completion function that this
2867 * command was assigned, assuming it has one.
2869 if (ctlx->cmdcb != NULL) {
2870 spin_unlock_irqrestore(&hw->ctlxq.lock, flags);
2871 ctlx->cmdcb(hw, ctlx);
2872 spin_lock_irqsave(&hw->ctlxq.lock, flags);
2874 /* Make sure we don't try and complete
2875 * this CTLX more than once!
2879 /* Did someone yank the adapter out
2880 * while our list was (briefly) unlocked?
2882 if (hw->wlandev->hwremoved) {
2889 * "Reapable" CTLXs are ones which don't have any
2890 * threads waiting for them to die. Hence they must
2891 * be delivered to The Reaper!
2893 if (ctlx->reapable) {
2894 /* Move the CTLX off the "completing" list (hopefully)
2895 * on to the "reapable" list where the reaper task
2896 * can find it. And "reapable" means that this CTLX
2897 * isn't sitting on a wait-queue somewhere.
2899 list_move_tail(&ctlx->list, &hw->ctlxq.reapable);
2903 complete(&ctlx->done);
2905 spin_unlock_irqrestore(&hw->ctlxq.lock, flags);
2908 tasklet_schedule(&hw->reaper_bh);
2911 /*----------------------------------------------------------------
2912 * unlocked_usbctlx_cancel_async
2914 * Mark the CTLX dead asynchronously, and ensure that the
2915 * next command on the queue is run afterwards.
2918 * hw ptr to the hfa384x_t structure
2919 * ctlx ptr to a CTLX structure
2922 * 0 the CTLX's URB is inactive
2923 * -EINPROGRESS the URB is currently being unlinked
2926 * Either process or interrupt, but presumably interrupt
2927 ----------------------------------------------------------------*/
2928 static int unlocked_usbctlx_cancel_async(hfa384x_t *hw,
2929 hfa384x_usbctlx_t *ctlx)
2934 * Try to delete the URB containing our request packet.
2935 * If we succeed, then its completion handler will be
2936 * called with a status of -ECONNRESET.
2938 hw->ctlx_urb.transfer_flags |= URB_ASYNC_UNLINK;
2939 ret = usb_unlink_urb(&hw->ctlx_urb);
2941 if (ret != -EINPROGRESS) {
2943 * The OUT URB had either already completed
2944 * or was still in the pending queue, so the
2945 * URB's completion function will not be called.
2946 * We will have to complete the CTLX ourselves.
2948 ctlx->state = CTLX_REQ_FAILED;
2949 unlocked_usbctlx_complete(hw, ctlx);
2956 /*----------------------------------------------------------------
2957 * unlocked_usbctlx_complete
2959 * A CTLX has completed. It may have been successful, it may not
2960 * have been. At this point, the CTLX should be quiescent. The URBs
2961 * aren't active and the timers should have been stopped.
2963 * The CTLX is migrated to the "completing" queue, and the completing
2964 * tasklet is scheduled.
2967 * hw ptr to a hfa384x_t structure
2968 * ctlx ptr to a ctlx structure
2976 * Either, assume interrupt
2977 ----------------------------------------------------------------*/
2978 static void unlocked_usbctlx_complete(hfa384x_t *hw, hfa384x_usbctlx_t *ctlx)
2980 /* Timers have been stopped, and ctlx should be in
2981 * a terminal state. Retire it from the "active"
2984 list_move_tail(&ctlx->list, &hw->ctlxq.completing);
2985 tasklet_schedule(&hw->completion_bh);
2987 switch (ctlx->state) {
2989 case CTLX_REQ_FAILED:
2990 /* This are the correct terminating states. */
2994 netdev_err(hw->wlandev->netdev, "CTLX[%d] not in a terminating state(%s)\n",
2995 le16_to_cpu(ctlx->outbuf.type),
2996 ctlxstr(ctlx->state));
3001 /*----------------------------------------------------------------
3002 * hfa384x_usbctlxq_run
3004 * Checks to see if the head item is running. If not, starts it.
3007 * hw ptr to hfa384x_t
3016 ----------------------------------------------------------------*/
3017 static void hfa384x_usbctlxq_run(hfa384x_t *hw)
3019 unsigned long flags;
3022 spin_lock_irqsave(&hw->ctlxq.lock, flags);
3024 /* Only one active CTLX at any one time, because there's no
3025 * other (reliable) way to match the response URB to the
3028 * Don't touch any of these CTLXs if the hardware
3029 * has been removed or the USB subsystem is stalled.
3031 if (!list_empty(&hw->ctlxq.active) ||
3032 test_bit(WORK_TX_HALT, &hw->usb_flags) || hw->wlandev->hwremoved)
3035 while (!list_empty(&hw->ctlxq.pending)) {
3036 hfa384x_usbctlx_t *head;
3039 /* This is the first pending command */
3040 head = list_entry(hw->ctlxq.pending.next,
3041 hfa384x_usbctlx_t, list);
3043 /* We need to split this off to avoid a race condition */
3044 list_move_tail(&head->list, &hw->ctlxq.active);
3046 /* Fill the out packet */
3047 usb_fill_bulk_urb(&(hw->ctlx_urb), hw->usb,
3049 &(head->outbuf), ROUNDUP64(head->outbufsize),
3050 hfa384x_ctlxout_callback, hw);
3051 hw->ctlx_urb.transfer_flags |= USB_QUEUE_BULK;
3053 /* Now submit the URB and update the CTLX's state */
3054 result = SUBMIT_URB(&hw->ctlx_urb, GFP_ATOMIC);
3056 /* This CTLX is now running on the active queue */
3057 head->state = CTLX_REQ_SUBMITTED;
3059 /* Start the OUT wait timer */
3060 hw->req_timer_done = 0;
3061 hw->reqtimer.expires = jiffies + HZ;
3062 add_timer(&hw->reqtimer);
3064 /* Start the IN wait timer */
3065 hw->resp_timer_done = 0;
3066 hw->resptimer.expires = jiffies + 2 * HZ;
3067 add_timer(&hw->resptimer);
3072 if (result == -EPIPE) {
3073 /* The OUT pipe needs resetting, so put
3074 * this CTLX back in the "pending" queue
3075 * and schedule a reset ...
3077 netdev_warn(hw->wlandev->netdev,
3078 "%s tx pipe stalled: requesting reset\n",
3079 hw->wlandev->netdev->name);
3080 list_move(&head->list, &hw->ctlxq.pending);
3081 set_bit(WORK_TX_HALT, &hw->usb_flags);
3082 schedule_work(&hw->usb_work);
3086 if (result == -ESHUTDOWN) {
3087 netdev_warn(hw->wlandev->netdev, "%s urb shutdown!\n",
3088 hw->wlandev->netdev->name);
3092 netdev_err(hw->wlandev->netdev, "Failed to submit CTLX[%d]: error=%d\n",
3093 le16_to_cpu(head->outbuf.type), result);
3094 unlocked_usbctlx_complete(hw, head);
3098 spin_unlock_irqrestore(&hw->ctlxq.lock, flags);
3101 /*----------------------------------------------------------------
3102 * hfa384x_usbin_callback
3104 * Callback for URBs on the BULKIN endpoint.
3107 * urb ptr to the completed urb
3116 ----------------------------------------------------------------*/
3117 static void hfa384x_usbin_callback(struct urb *urb)
3119 wlandevice_t *wlandev = urb->context;
3121 hfa384x_usbin_t *usbin = (hfa384x_usbin_t *)urb->transfer_buffer;
3122 struct sk_buff *skb = NULL;
3133 if (!wlandev || !wlandev->netdev || wlandev->hwremoved)
3140 skb = hw->rx_urb_skb;
3141 BUG_ON(!skb || (skb->data != urb->transfer_buffer));
3143 hw->rx_urb_skb = NULL;
3145 /* Check for error conditions within the URB */
3146 switch (urb->status) {
3150 /* Check for short packet */
3151 if (urb->actual_length == 0) {
3152 wlandev->netdev->stats.rx_errors++;
3153 wlandev->netdev->stats.rx_length_errors++;
3159 netdev_warn(hw->wlandev->netdev, "%s rx pipe stalled: requesting reset\n",
3160 wlandev->netdev->name);
3161 if (!test_and_set_bit(WORK_RX_HALT, &hw->usb_flags))
3162 schedule_work(&hw->usb_work);
3163 wlandev->netdev->stats.rx_errors++;
3170 if (!test_and_set_bit(THROTTLE_RX, &hw->usb_flags) &&
3171 !timer_pending(&hw->throttle)) {
3172 mod_timer(&hw->throttle, jiffies + THROTTLE_JIFFIES);
3174 wlandev->netdev->stats.rx_errors++;
3179 wlandev->netdev->stats.rx_over_errors++;
3185 pr_debug("status=%d, device removed.\n", urb->status);
3191 pr_debug("status=%d, urb explicitly unlinked.\n", urb->status);
3196 pr_debug("urb status=%d, transfer flags=0x%x\n",
3197 urb->status, urb->transfer_flags);
3198 wlandev->netdev->stats.rx_errors++;
3203 urb_status = urb->status;
3205 if (action != ABORT) {
3206 /* Repost the RX URB */
3207 result = submit_rx_urb(hw, GFP_ATOMIC);
3210 netdev_err(hw->wlandev->netdev,
3211 "Fatal, failed to resubmit rx_urb. error=%d\n",
3216 /* Handle any USB-IN packet */
3217 /* Note: the check of the sw_support field, the type field doesn't
3218 * have bit 12 set like the docs suggest.
3220 type = le16_to_cpu(usbin->type);
3221 if (HFA384x_USB_ISRXFRM(type)) {
3222 if (action == HANDLE) {
3223 if (usbin->txfrm.desc.sw_support == 0x0123) {
3224 hfa384x_usbin_txcompl(wlandev, usbin);
3226 skb_put(skb, sizeof(*usbin));
3227 hfa384x_usbin_rx(wlandev, skb);
3233 if (HFA384x_USB_ISTXFRM(type)) {
3234 if (action == HANDLE)
3235 hfa384x_usbin_txcompl(wlandev, usbin);
3239 case HFA384x_USB_INFOFRM:
3240 if (action == ABORT)
3242 if (action == HANDLE)
3243 hfa384x_usbin_info(wlandev, usbin);
3246 case HFA384x_USB_CMDRESP:
3247 case HFA384x_USB_WRIDRESP:
3248 case HFA384x_USB_RRIDRESP:
3249 case HFA384x_USB_WMEMRESP:
3250 case HFA384x_USB_RMEMRESP:
3251 /* ALWAYS, ALWAYS, ALWAYS handle this CTLX!!!! */
3252 hfa384x_usbin_ctlx(hw, usbin, urb_status);
3255 case HFA384x_USB_BUFAVAIL:
3256 pr_debug("Received BUFAVAIL packet, frmlen=%d\n",
3257 usbin->bufavail.frmlen);
3260 case HFA384x_USB_ERROR:
3261 pr_debug("Received USB_ERROR packet, errortype=%d\n",
3262 usbin->usberror.errortype);
3266 pr_debug("Unrecognized USBIN packet, type=%x, status=%d\n",
3267 usbin->type, urb_status);
3277 /*----------------------------------------------------------------
3278 * hfa384x_usbin_ctlx
3280 * We've received a URB containing a Prism2 "response" message.
3281 * This message needs to be matched up with a CTLX on the active
3282 * queue and our state updated accordingly.
3285 * hw ptr to hfa384x_t
3286 * usbin ptr to USB IN packet
3287 * urb_status status of this Bulk-In URB
3296 ----------------------------------------------------------------*/
3297 static void hfa384x_usbin_ctlx(hfa384x_t *hw, hfa384x_usbin_t *usbin,
3300 hfa384x_usbctlx_t *ctlx;
3302 unsigned long flags;
3305 spin_lock_irqsave(&hw->ctlxq.lock, flags);
3307 /* There can be only one CTLX on the active queue
3308 * at any one time, and this is the CTLX that the
3309 * timers are waiting for.
3311 if (list_empty(&hw->ctlxq.active))
3314 /* Remove the "response timeout". It's possible that
3315 * we are already too late, and that the timeout is
3316 * already running. And that's just too bad for us,
3317 * because we could lose our CTLX from the active
3320 if (del_timer(&hw->resptimer) == 0) {
3321 if (hw->resp_timer_done == 0) {
3322 spin_unlock_irqrestore(&hw->ctlxq.lock, flags);
3326 hw->resp_timer_done = 1;
3329 ctlx = get_active_ctlx(hw);
3331 if (urb_status != 0) {
3333 * Bad CTLX, so get rid of it. But we only
3334 * remove it from the active queue if we're no
3335 * longer expecting the OUT URB to complete.
3337 if (unlocked_usbctlx_cancel_async(hw, ctlx) == 0)
3340 const __le16 intype = (usbin->type & ~cpu_to_le16(0x8000));
3343 * Check that our message is what we're expecting ...
3345 if (ctlx->outbuf.type != intype) {
3346 netdev_warn(hw->wlandev->netdev,
3347 "Expected IN[%d], received IN[%d] - ignored.\n",
3348 le16_to_cpu(ctlx->outbuf.type),
3349 le16_to_cpu(intype));
3353 /* This URB has succeeded, so grab the data ... */
3354 memcpy(&ctlx->inbuf, usbin, sizeof(ctlx->inbuf));
3356 switch (ctlx->state) {
3357 case CTLX_REQ_SUBMITTED:
3359 * We have received our response URB before
3360 * our request has been acknowledged. Odd,
3361 * but our OUT URB is still alive...
3363 pr_debug("Causality violation: please reboot Universe\n");
3364 ctlx->state = CTLX_RESP_COMPLETE;
3367 case CTLX_REQ_COMPLETE:
3369 * This is the usual path: our request
3370 * has already been acknowledged, and
3371 * now we have received the reply too.
3373 ctlx->state = CTLX_COMPLETE;
3374 unlocked_usbctlx_complete(hw, ctlx);
3380 * Throw this CTLX away ...
3382 netdev_err(hw->wlandev->netdev,
3383 "Matched IN URB, CTLX[%d] in invalid state(%s). Discarded.\n",
3384 le16_to_cpu(ctlx->outbuf.type),
3385 ctlxstr(ctlx->state));
3386 if (unlocked_usbctlx_cancel_async(hw, ctlx) == 0)
3393 spin_unlock_irqrestore(&hw->ctlxq.lock, flags);
3396 hfa384x_usbctlxq_run(hw);
3399 /*----------------------------------------------------------------
3400 * hfa384x_usbin_txcompl
3402 * At this point we have the results of a previous transmit.
3405 * wlandev wlan device
3406 * usbin ptr to the usb transfer buffer
3415 ----------------------------------------------------------------*/
3416 static void hfa384x_usbin_txcompl(wlandevice_t *wlandev,
3417 hfa384x_usbin_t *usbin)
3421 status = le16_to_cpu(usbin->type); /* yeah I know it says type... */
3423 /* Was there an error? */
3424 if (HFA384x_TXSTATUS_ISERROR(status))
3425 prism2sta_ev_txexc(wlandev, status);
3427 prism2sta_ev_tx(wlandev, status);
3430 /*----------------------------------------------------------------
3433 * At this point we have a successful received a rx frame packet.
3436 * wlandev wlan device
3437 * usbin ptr to the usb transfer buffer
3446 ----------------------------------------------------------------*/
3447 static void hfa384x_usbin_rx(wlandevice_t *wlandev, struct sk_buff *skb)
3449 hfa384x_usbin_t *usbin = (hfa384x_usbin_t *)skb->data;
3450 hfa384x_t *hw = wlandev->priv;
3452 struct p80211_rxmeta *rxmeta;
3456 /* Byte order convert once up front. */
3457 usbin->rxfrm.desc.status = le16_to_cpu(usbin->rxfrm.desc.status);
3458 usbin->rxfrm.desc.time = le32_to_cpu(usbin->rxfrm.desc.time);
3460 /* Now handle frame based on port# */
3461 switch (HFA384x_RXSTATUS_MACPORT_GET(usbin->rxfrm.desc.status)) {
3463 fc = le16_to_cpu(usbin->rxfrm.desc.frame_control);
3465 /* If exclude and we receive an unencrypted, drop it */
3466 if ((wlandev->hostwep & HOSTWEP_EXCLUDEUNENCRYPTED) &&
3467 !WLAN_GET_FC_ISWEP(fc)) {
3471 data_len = le16_to_cpu(usbin->rxfrm.desc.data_len);
3473 /* How much header data do we have? */
3474 hdrlen = p80211_headerlen(fc);
3476 /* Pull off the descriptor */
3477 skb_pull(skb, sizeof(hfa384x_rx_frame_t));
3479 /* Now shunt the header block up against the data block
3480 * with an "overlapping" copy
3482 memmove(skb_push(skb, hdrlen),
3483 &usbin->rxfrm.desc.frame_control, hdrlen);
3485 skb->dev = wlandev->netdev;
3486 skb->dev->last_rx = jiffies;
3488 /* And set the frame length properly */
3489 skb_trim(skb, data_len + hdrlen);
3491 /* The prism2 series does not return the CRC */
3492 memset(skb_put(skb, WLAN_CRC_LEN), 0xff, WLAN_CRC_LEN);
3494 skb_reset_mac_header(skb);
3496 /* Attach the rxmeta, set some stuff */
3497 p80211skb_rxmeta_attach(wlandev, skb);
3498 rxmeta = P80211SKB_RXMETA(skb);
3499 rxmeta->mactime = usbin->rxfrm.desc.time;
3500 rxmeta->rxrate = usbin->rxfrm.desc.rate;
3501 rxmeta->signal = usbin->rxfrm.desc.signal - hw->dbmadjust;
3502 rxmeta->noise = usbin->rxfrm.desc.silence - hw->dbmadjust;
3504 p80211netdev_rx(wlandev, skb);
3509 if (!HFA384x_RXSTATUS_ISFCSERR(usbin->rxfrm.desc.status)) {
3510 /* Copy to wlansnif skb */
3511 hfa384x_int_rxmonitor(wlandev, &usbin->rxfrm);
3514 pr_debug("Received monitor frame: FCSerr set\n");
3519 netdev_warn(hw->wlandev->netdev, "Received frame on unsupported port=%d\n",
3520 HFA384x_RXSTATUS_MACPORT_GET(
3521 usbin->rxfrm.desc.status));
3526 /*----------------------------------------------------------------
3527 * hfa384x_int_rxmonitor
3529 * Helper function for int_rx. Handles monitor frames.
3530 * Note that this function allocates space for the FCS and sets it
3531 * to 0xffffffff. The hfa384x doesn't give us the FCS value but the
3532 * higher layers expect it. 0xffffffff is used as a flag to indicate
3536 * wlandev wlan device structure
3537 * rxfrm rx descriptor read from card in int_rx
3543 * Allocates an skb and passes it up via the PF_PACKET interface.
3546 ----------------------------------------------------------------*/
3547 static void hfa384x_int_rxmonitor(wlandevice_t *wlandev,
3548 hfa384x_usb_rxfrm_t *rxfrm)
3550 hfa384x_rx_frame_t *rxdesc = &(rxfrm->desc);
3551 unsigned int hdrlen = 0;
3552 unsigned int datalen = 0;
3553 unsigned int skblen = 0;
3556 struct sk_buff *skb;
3557 hfa384x_t *hw = wlandev->priv;
3559 /* Remember the status, time, and data_len fields are in host order */
3560 /* Figure out how big the frame is */
3561 fc = le16_to_cpu(rxdesc->frame_control);
3562 hdrlen = p80211_headerlen(fc);
3563 datalen = le16_to_cpu(rxdesc->data_len);
3565 /* Allocate an ind message+framesize skb */
3566 skblen = sizeof(struct p80211_caphdr) + hdrlen + datalen + WLAN_CRC_LEN;
3568 /* sanity check the length */
3570 (sizeof(struct p80211_caphdr) +
3571 WLAN_HDR_A4_LEN + WLAN_DATA_MAXLEN + WLAN_CRC_LEN)) {
3572 pr_debug("overlen frm: len=%zd\n",
3573 skblen - sizeof(struct p80211_caphdr));
3576 skb = dev_alloc_skb(skblen);
3580 /* only prepend the prism header if in the right mode */
3581 if ((wlandev->netdev->type == ARPHRD_IEEE80211_PRISM) &&
3582 (hw->sniffhdr != 0)) {
3583 struct p80211_caphdr *caphdr;
3584 /* The NEW header format! */
3585 datap = skb_put(skb, sizeof(struct p80211_caphdr));
3586 caphdr = (struct p80211_caphdr *)datap;
3588 caphdr->version = htonl(P80211CAPTURE_VERSION);
3589 caphdr->length = htonl(sizeof(struct p80211_caphdr));
3590 caphdr->mactime = __cpu_to_be64(rxdesc->time) * 1000;
3591 caphdr->hosttime = __cpu_to_be64(jiffies);
3592 caphdr->phytype = htonl(4); /* dss_dot11_b */
3593 caphdr->channel = htonl(hw->sniff_channel);
3594 caphdr->datarate = htonl(rxdesc->rate);
3595 caphdr->antenna = htonl(0); /* unknown */
3596 caphdr->priority = htonl(0); /* unknown */
3597 caphdr->ssi_type = htonl(3); /* rssi_raw */
3598 caphdr->ssi_signal = htonl(rxdesc->signal);
3599 caphdr->ssi_noise = htonl(rxdesc->silence);
3600 caphdr->preamble = htonl(0); /* unknown */
3601 caphdr->encoding = htonl(1); /* cck */
3604 /* Copy the 802.11 header to the skb
3605 (ctl frames may be less than a full header) */
3606 datap = skb_put(skb, hdrlen);
3607 memcpy(datap, &(rxdesc->frame_control), hdrlen);
3609 /* If any, copy the data from the card to the skb */
3611 datap = skb_put(skb, datalen);
3612 memcpy(datap, rxfrm->data, datalen);
3614 /* check for unencrypted stuff if WEP bit set. */
3615 if (*(datap - hdrlen + 1) & 0x40) /* wep set */
3616 if ((*(datap) == 0xaa) && (*(datap + 1) == 0xaa))
3617 /* clear wep; it's the 802.2 header! */
3618 *(datap - hdrlen + 1) &= 0xbf;
3621 if (hw->sniff_fcs) {
3623 datap = skb_put(skb, WLAN_CRC_LEN);
3624 memset(datap, 0xff, WLAN_CRC_LEN);
3627 /* pass it back up */
3628 p80211netdev_rx(wlandev, skb);
3631 /*----------------------------------------------------------------
3632 * hfa384x_usbin_info
3634 * At this point we have a successful received a Prism2 info frame.
3637 * wlandev wlan device
3638 * usbin ptr to the usb transfer buffer
3647 ----------------------------------------------------------------*/
3648 static void hfa384x_usbin_info(wlandevice_t *wlandev, hfa384x_usbin_t *usbin)
3650 usbin->infofrm.info.framelen =
3651 le16_to_cpu(usbin->infofrm.info.framelen);
3652 prism2sta_ev_info(wlandev, &usbin->infofrm.info);
3655 /*----------------------------------------------------------------
3656 * hfa384x_usbout_callback
3658 * Callback for URBs on the BULKOUT endpoint.
3661 * urb ptr to the completed urb
3670 ----------------------------------------------------------------*/
3671 static void hfa384x_usbout_callback(struct urb *urb)
3673 wlandevice_t *wlandev = urb->context;
3679 if (wlandev && wlandev->netdev) {
3680 switch (urb->status) {
3682 prism2sta_ev_alloc(wlandev);
3687 hfa384x_t *hw = wlandev->priv;
3689 netdev_warn(hw->wlandev->netdev,
3690 "%s tx pipe stalled: requesting reset\n",
3691 wlandev->netdev->name);
3692 if (!test_and_set_bit
3693 (WORK_TX_HALT, &hw->usb_flags))
3694 schedule_work(&hw->usb_work);
3695 wlandev->netdev->stats.tx_errors++;
3703 hfa384x_t *hw = wlandev->priv;
3705 if (!test_and_set_bit
3706 (THROTTLE_TX, &hw->usb_flags) &&
3707 !timer_pending(&hw->throttle)) {
3708 mod_timer(&hw->throttle,
3709 jiffies + THROTTLE_JIFFIES);
3711 wlandev->netdev->stats.tx_errors++;
3712 netif_stop_queue(wlandev->netdev);
3718 /* Ignorable errors */
3722 netdev_info(wlandev->netdev, "unknown urb->status=%d\n",
3724 wlandev->netdev->stats.tx_errors++;
3730 /*----------------------------------------------------------------
3731 * hfa384x_ctlxout_callback
3733 * Callback for control data on the BULKOUT endpoint.
3736 * urb ptr to the completed urb
3745 ----------------------------------------------------------------*/
3746 static void hfa384x_ctlxout_callback(struct urb *urb)
3748 hfa384x_t *hw = urb->context;
3749 int delete_resptimer = 0;
3752 hfa384x_usbctlx_t *ctlx;
3753 unsigned long flags;
3755 pr_debug("urb->status=%d\n", urb->status);
3759 if ((urb->status == -ESHUTDOWN) ||
3760 (urb->status == -ENODEV) || (hw == NULL))
3764 spin_lock_irqsave(&hw->ctlxq.lock, flags);
3767 * Only one CTLX at a time on the "active" list, and
3768 * none at all if we are unplugged. However, we can
3769 * rely on the disconnect function to clean everything
3770 * up if someone unplugged the adapter.
3772 if (list_empty(&hw->ctlxq.active)) {
3773 spin_unlock_irqrestore(&hw->ctlxq.lock, flags);
3778 * Having something on the "active" queue means
3779 * that we have timers to worry about ...
3781 if (del_timer(&hw->reqtimer) == 0) {
3782 if (hw->req_timer_done == 0) {
3784 * This timer was actually running while we
3785 * were trying to delete it. Let it terminate
3786 * gracefully instead.
3788 spin_unlock_irqrestore(&hw->ctlxq.lock, flags);
3792 hw->req_timer_done = 1;
3795 ctlx = get_active_ctlx(hw);
3797 if (urb->status == 0) {
3798 /* Request portion of a CTLX is successful */
3799 switch (ctlx->state) {
3800 case CTLX_REQ_SUBMITTED:
3801 /* This OUT-ACK received before IN */
3802 ctlx->state = CTLX_REQ_COMPLETE;
3805 case CTLX_RESP_COMPLETE:
3806 /* IN already received before this OUT-ACK,
3807 * so this command must now be complete.
3809 ctlx->state = CTLX_COMPLETE;
3810 unlocked_usbctlx_complete(hw, ctlx);
3815 /* This is NOT a valid CTLX "success" state! */
3816 netdev_err(hw->wlandev->netdev,
3817 "Illegal CTLX[%d] success state(%s, %d) in OUT URB\n",
3818 le16_to_cpu(ctlx->outbuf.type),
3819 ctlxstr(ctlx->state), urb->status);
3823 /* If the pipe has stalled then we need to reset it */
3824 if ((urb->status == -EPIPE) &&
3825 !test_and_set_bit(WORK_TX_HALT, &hw->usb_flags)) {
3826 netdev_warn(hw->wlandev->netdev,
3827 "%s tx pipe stalled: requesting reset\n",
3828 hw->wlandev->netdev->name);
3829 schedule_work(&hw->usb_work);
3832 /* If someone cancels the OUT URB then its status
3833 * should be either -ECONNRESET or -ENOENT.
3835 ctlx->state = CTLX_REQ_FAILED;
3836 unlocked_usbctlx_complete(hw, ctlx);
3837 delete_resptimer = 1;
3842 if (delete_resptimer) {
3843 timer_ok = del_timer(&hw->resptimer);
3845 hw->resp_timer_done = 1;
3848 spin_unlock_irqrestore(&hw->ctlxq.lock, flags);
3850 if (!timer_ok && (hw->resp_timer_done == 0)) {
3851 spin_lock_irqsave(&hw->ctlxq.lock, flags);
3856 hfa384x_usbctlxq_run(hw);
3859 /*----------------------------------------------------------------
3860 * hfa384x_usbctlx_reqtimerfn
3862 * Timer response function for CTLX request timeouts. If this
3863 * function is called, it means that the callback for the OUT
3864 * URB containing a Prism2.x XXX_Request was never called.
3867 * data a ptr to the hfa384x_t
3876 ----------------------------------------------------------------*/
3877 static void hfa384x_usbctlx_reqtimerfn(unsigned long data)
3879 hfa384x_t *hw = (hfa384x_t *)data;
3880 unsigned long flags;
3882 spin_lock_irqsave(&hw->ctlxq.lock, flags);
3884 hw->req_timer_done = 1;
3886 /* Removing the hardware automatically empties
3887 * the active list ...
3889 if (!list_empty(&hw->ctlxq.active)) {
3891 * We must ensure that our URB is removed from
3892 * the system, if it hasn't already expired.
3894 hw->ctlx_urb.transfer_flags |= URB_ASYNC_UNLINK;
3895 if (usb_unlink_urb(&hw->ctlx_urb) == -EINPROGRESS) {
3896 hfa384x_usbctlx_t *ctlx = get_active_ctlx(hw);
3898 ctlx->state = CTLX_REQ_FAILED;
3900 /* This URB was active, but has now been
3901 * cancelled. It will now have a status of
3902 * -ECONNRESET in the callback function.
3904 * We are cancelling this CTLX, so we're
3905 * not going to need to wait for a response.
3906 * The URB's callback function will check
3907 * that this timer is truly dead.
3909 if (del_timer(&hw->resptimer) != 0)
3910 hw->resp_timer_done = 1;
3914 spin_unlock_irqrestore(&hw->ctlxq.lock, flags);
3917 /*----------------------------------------------------------------
3918 * hfa384x_usbctlx_resptimerfn
3920 * Timer response function for CTLX response timeouts. If this
3921 * function is called, it means that the callback for the IN
3922 * URB containing a Prism2.x XXX_Response was never called.
3925 * data a ptr to the hfa384x_t
3934 ----------------------------------------------------------------*/
3935 static void hfa384x_usbctlx_resptimerfn(unsigned long data)
3937 hfa384x_t *hw = (hfa384x_t *)data;
3938 unsigned long flags;
3940 spin_lock_irqsave(&hw->ctlxq.lock, flags);
3942 hw->resp_timer_done = 1;
3944 /* The active list will be empty if the
3945 * adapter has been unplugged ...
3947 if (!list_empty(&hw->ctlxq.active)) {
3948 hfa384x_usbctlx_t *ctlx = get_active_ctlx(hw);
3950 if (unlocked_usbctlx_cancel_async(hw, ctlx) == 0) {
3951 spin_unlock_irqrestore(&hw->ctlxq.lock, flags);
3952 hfa384x_usbctlxq_run(hw);
3956 spin_unlock_irqrestore(&hw->ctlxq.lock, flags);
3959 /*----------------------------------------------------------------
3960 * hfa384x_usb_throttlefn
3973 ----------------------------------------------------------------*/
3974 static void hfa384x_usb_throttlefn(unsigned long data)
3976 hfa384x_t *hw = (hfa384x_t *)data;
3977 unsigned long flags;
3979 spin_lock_irqsave(&hw->ctlxq.lock, flags);
3982 * We need to check BOTH the RX and the TX throttle controls,
3983 * so we use the bitwise OR instead of the logical OR.
3985 pr_debug("flags=0x%lx\n", hw->usb_flags);
3986 if (!hw->wlandev->hwremoved &&
3987 ((test_and_clear_bit(THROTTLE_RX, &hw->usb_flags) &&
3988 !test_and_set_bit(WORK_RX_RESUME, &hw->usb_flags))
3990 (test_and_clear_bit(THROTTLE_TX, &hw->usb_flags) &&
3991 !test_and_set_bit(WORK_TX_RESUME, &hw->usb_flags))
3993 schedule_work(&hw->usb_work);
3996 spin_unlock_irqrestore(&hw->ctlxq.lock, flags);
3999 /*----------------------------------------------------------------
4000 * hfa384x_usbctlx_submit
4002 * Called from the doxxx functions to submit a CTLX to the queue
4005 * hw ptr to the hw struct
4006 * ctlx ctlx structure to enqueue
4009 * -ENODEV if the adapter is unplugged
4015 * process or interrupt
4016 ----------------------------------------------------------------*/
4017 static int hfa384x_usbctlx_submit(hfa384x_t *hw, hfa384x_usbctlx_t *ctlx)
4019 unsigned long flags;
4021 spin_lock_irqsave(&hw->ctlxq.lock, flags);
4023 if (hw->wlandev->hwremoved) {
4024 spin_unlock_irqrestore(&hw->ctlxq.lock, flags);
4028 ctlx->state = CTLX_PENDING;
4029 list_add_tail(&ctlx->list, &hw->ctlxq.pending);
4030 spin_unlock_irqrestore(&hw->ctlxq.lock, flags);
4031 hfa384x_usbctlxq_run(hw);
4036 /*----------------------------------------------------------------
4037 * hfa384x_isgood_pdrcore
4039 * Quick check of PDR codes.
4042 * pdrcode PDR code number (host order)
4051 ----------------------------------------------------------------*/
4052 static int hfa384x_isgood_pdrcode(u16 pdrcode)
4055 case HFA384x_PDR_END_OF_PDA:
4056 case HFA384x_PDR_PCB_PARTNUM:
4057 case HFA384x_PDR_PDAVER:
4058 case HFA384x_PDR_NIC_SERIAL:
4059 case HFA384x_PDR_MKK_MEASUREMENTS:
4060 case HFA384x_PDR_NIC_RAMSIZE:
4061 case HFA384x_PDR_MFISUPRANGE:
4062 case HFA384x_PDR_CFISUPRANGE:
4063 case HFA384x_PDR_NICID:
4064 case HFA384x_PDR_MAC_ADDRESS:
4065 case HFA384x_PDR_REGDOMAIN:
4066 case HFA384x_PDR_ALLOWED_CHANNEL:
4067 case HFA384x_PDR_DEFAULT_CHANNEL:
4068 case HFA384x_PDR_TEMPTYPE:
4069 case HFA384x_PDR_IFR_SETTING:
4070 case HFA384x_PDR_RFR_SETTING:
4071 case HFA384x_PDR_HFA3861_BASELINE:
4072 case HFA384x_PDR_HFA3861_SHADOW:
4073 case HFA384x_PDR_HFA3861_IFRF:
4074 case HFA384x_PDR_HFA3861_CHCALSP:
4075 case HFA384x_PDR_HFA3861_CHCALI:
4076 case HFA384x_PDR_3842_NIC_CONFIG:
4077 case HFA384x_PDR_USB_ID:
4078 case HFA384x_PDR_PCI_ID:
4079 case HFA384x_PDR_PCI_IFCONF:
4080 case HFA384x_PDR_PCI_PMCONF:
4081 case HFA384x_PDR_RFENRGY:
4082 case HFA384x_PDR_HFA3861_MANF_TESTSP:
4083 case HFA384x_PDR_HFA3861_MANF_TESTI:
4087 if (pdrcode < 0x1000) {
4088 /* code is OK, but we don't know exactly what it is */
4089 pr_debug("Encountered unknown PDR#=0x%04x, assuming it's ok.\n",
4096 pr_debug("Encountered unknown PDR#=0x%04x, (>=0x1000), assuming it's bad.\n",