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Commit | Line | Data |
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876c9d3a MT |
1 | /** |
2 | * This file contains functions used in USB interface module. | |
3 | */ | |
4 | #include <linux/delay.h> | |
5 | #include <linux/firmware.h> | |
6 | #include <linux/netdevice.h> | |
7 | #include <linux/usb.h> | |
8 | ||
9 | #include "host.h" | |
10 | #include "sbi.h" | |
11 | #include "decl.h" | |
12 | #include "defs.h" | |
13 | #include "dev.h" | |
14 | #include "if_usb.h" | |
15 | ||
16 | #define MESSAGE_HEADER_LEN 4 | |
17 | ||
18 | static const char usbdriver_name[] = "usb8xxx"; | |
19 | ||
20 | static struct usb_device_id if_usb_table[] = { | |
21 | /* Enter the device signature inside */ | |
66fcc559 HS |
22 | { USB_DEVICE(0x1286, 0x2001) }, |
23 | { USB_DEVICE(0x05a3, 0x8388) }, | |
876c9d3a MT |
24 | {} /* Terminating entry */ |
25 | }; | |
26 | ||
27 | MODULE_DEVICE_TABLE(usb, if_usb_table); | |
28 | ||
29 | static void if_usb_receive(struct urb *urb); | |
30 | static void if_usb_receive_fwload(struct urb *urb); | |
31 | ||
32 | /** | |
33 | * @brief call back function to handle the status of the URB | |
34 | * @param urb pointer to urb structure | |
35 | * @return N/A | |
36 | */ | |
37 | static void if_usb_write_bulk_callback(struct urb *urb) | |
38 | { | |
39 | wlan_private *priv = (wlan_private *) (urb->context); | |
40 | wlan_adapter *adapter = priv->adapter; | |
41 | struct net_device *dev = priv->wlan_dev.netdev; | |
42 | ||
43 | /* handle the transmission complete validations */ | |
44 | ||
45 | if (urb->status != 0) { | |
46 | /* print the failure status number for debug */ | |
47 | lbs_pr_info("URB in failure status\n"); | |
48 | } else { | |
9012b28a HS |
49 | /* |
50 | lbs_deb_usbd(&urb->dev->dev, "URB status is successfull\n"); | |
51 | lbs_deb_usbd(&urb->dev->dev, "Actual length transmitted %d\n", | |
876c9d3a | 52 | urb->actual_length); |
9012b28a | 53 | */ |
876c9d3a MT |
54 | priv->wlan_dev.dnld_sent = DNLD_RES_RECEIVED; |
55 | /* Wake main thread if commands are pending */ | |
56 | if (!adapter->cur_cmd) | |
57 | wake_up_interruptible(&priv->mainthread.waitq); | |
58 | if ((adapter->connect_status == libertas_connected)) | |
59 | netif_wake_queue(dev); | |
60 | } | |
61 | ||
62 | return; | |
63 | } | |
64 | ||
65 | /** | |
66 | * @brief free tx/rx urb, skb and rx buffer | |
67 | * @param cardp pointer usb_card_rec | |
68 | * @return N/A | |
69 | */ | |
70 | void if_usb_free(struct usb_card_rec *cardp) | |
71 | { | |
9012b28a | 72 | lbs_deb_enter(LBS_DEB_USB); |
876c9d3a MT |
73 | |
74 | /* Unlink tx & rx urb */ | |
75 | usb_kill_urb(cardp->tx_urb); | |
76 | usb_kill_urb(cardp->rx_urb); | |
77 | ||
78 | usb_free_urb(cardp->tx_urb); | |
79 | cardp->tx_urb = NULL; | |
80 | ||
81 | usb_free_urb(cardp->rx_urb); | |
82 | cardp->rx_urb = NULL; | |
83 | ||
84 | kfree(cardp->bulk_out_buffer); | |
85 | cardp->bulk_out_buffer = NULL; | |
86 | ||
9012b28a | 87 | lbs_deb_leave(LBS_DEB_USB); |
876c9d3a MT |
88 | } |
89 | ||
90 | /** | |
91 | * @brief sets the configuration values | |
92 | * @param ifnum interface number | |
93 | * @param id pointer to usb_device_id | |
94 | * @return 0 on success, error code on failure | |
95 | */ | |
96 | static int if_usb_probe(struct usb_interface *intf, | |
97 | const struct usb_device_id *id) | |
98 | { | |
99 | struct usb_device *udev; | |
100 | struct usb_host_interface *iface_desc; | |
101 | struct usb_endpoint_descriptor *endpoint; | |
102 | wlan_private *pwlanpriv; | |
103 | struct usb_card_rec *usb_cardp; | |
104 | int i; | |
105 | ||
106 | udev = interface_to_usbdev(intf); | |
107 | ||
108 | usb_cardp = kzalloc(sizeof(struct usb_card_rec), GFP_KERNEL); | |
109 | if (!usb_cardp) { | |
110 | lbs_pr_err("Out of memory allocating private data.\n"); | |
111 | goto error; | |
112 | } | |
113 | ||
114 | usb_cardp->udev = udev; | |
115 | iface_desc = intf->cur_altsetting; | |
116 | ||
9012b28a | 117 | lbs_deb_usbd(&udev->dev, "bcdUSB = 0x%X bDeviceClass = 0x%X" |
876c9d3a MT |
118 | " bDeviceSubClass = 0x%X, bDeviceProtocol = 0x%X\n", |
119 | udev->descriptor.bcdUSB, | |
120 | udev->descriptor.bDeviceClass, | |
121 | udev->descriptor.bDeviceSubClass, | |
122 | udev->descriptor.bDeviceProtocol); | |
123 | ||
124 | for (i = 0; i < iface_desc->desc.bNumEndpoints; ++i) { | |
125 | endpoint = &iface_desc->endpoint[i].desc; | |
126 | if ((endpoint->bEndpointAddress & USB_ENDPOINT_DIR_MASK) | |
127 | && ((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) == | |
128 | USB_ENDPOINT_XFER_BULK)) { | |
129 | /* we found a bulk in endpoint */ | |
9012b28a | 130 | lbs_deb_usbd(&udev->dev, "Bulk in size is %d\n", |
876c9d3a MT |
131 | endpoint->wMaxPacketSize); |
132 | if (! | |
133 | (usb_cardp->rx_urb = | |
134 | usb_alloc_urb(0, GFP_KERNEL))) { | |
9012b28a | 135 | lbs_deb_usbd(&udev->dev, |
876c9d3a MT |
136 | "Rx URB allocation failed\n"); |
137 | goto dealloc; | |
138 | } | |
139 | usb_cardp->rx_urb_recall = 0; | |
140 | ||
141 | usb_cardp->bulk_in_size = | |
142 | endpoint->wMaxPacketSize; | |
143 | usb_cardp->bulk_in_endpointAddr = | |
144 | (endpoint-> | |
145 | bEndpointAddress & USB_ENDPOINT_NUMBER_MASK); | |
9012b28a | 146 | lbs_deb_usbd(&udev->dev, "in_endpoint = %d\n", |
876c9d3a MT |
147 | endpoint->bEndpointAddress); |
148 | } | |
149 | ||
150 | if (((endpoint-> | |
151 | bEndpointAddress & USB_ENDPOINT_DIR_MASK) == | |
152 | USB_DIR_OUT) | |
153 | && ((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) == | |
154 | USB_ENDPOINT_XFER_BULK)) { | |
155 | /* We found bulk out endpoint */ | |
156 | if (! | |
157 | (usb_cardp->tx_urb = | |
158 | usb_alloc_urb(0, GFP_KERNEL))) { | |
9012b28a | 159 | lbs_deb_usbd(&udev->dev, |
876c9d3a MT |
160 | "Tx URB allocation failed\n"); |
161 | goto dealloc; | |
162 | } | |
163 | ||
164 | usb_cardp->bulk_out_size = | |
165 | endpoint->wMaxPacketSize; | |
9012b28a | 166 | lbs_deb_usbd(&udev->dev, |
876c9d3a MT |
167 | "Bulk out size is %d\n", |
168 | endpoint->wMaxPacketSize); | |
169 | usb_cardp->bulk_out_endpointAddr = | |
170 | endpoint->bEndpointAddress; | |
9012b28a | 171 | lbs_deb_usbd(&udev->dev, "out_endpoint = %d\n", |
876c9d3a MT |
172 | endpoint->bEndpointAddress); |
173 | usb_cardp->bulk_out_buffer = | |
174 | kmalloc(MRVDRV_ETH_TX_PACKET_BUFFER_SIZE, | |
175 | GFP_KERNEL); | |
176 | ||
177 | if (!usb_cardp->bulk_out_buffer) { | |
9012b28a | 178 | lbs_deb_usbd(&udev->dev, |
876c9d3a MT |
179 | "Could not allocate buffer\n"); |
180 | goto dealloc; | |
181 | } | |
182 | } | |
183 | } | |
184 | ||
185 | ||
186 | /* At this point wlan_add_card() will be called. Don't worry | |
187 | * about keeping pwlanpriv around since it will be set on our | |
188 | * usb device data in -> add() -> libertas_sbi_register_dev(). | |
189 | */ | |
190 | if (!(pwlanpriv = wlan_add_card(usb_cardp))) | |
191 | goto dealloc; | |
192 | ||
193 | usb_get_dev(udev); | |
194 | usb_set_intfdata(intf, usb_cardp); | |
195 | ||
196 | /* | |
197 | * return card structure, which can be got back in the | |
198 | * diconnect function as the ptr | |
199 | * argument. | |
200 | */ | |
201 | return 0; | |
202 | ||
203 | dealloc: | |
204 | if_usb_free(usb_cardp); | |
205 | ||
206 | error: | |
207 | return -ENOMEM; | |
208 | } | |
209 | ||
210 | /** | |
211 | * @brief free resource and cleanup | |
212 | * @param udev pointer to usb_device | |
213 | * @param ptr pointer to usb_cardp | |
214 | * @return N/A | |
215 | */ | |
216 | static void if_usb_disconnect(struct usb_interface *intf) | |
217 | { | |
218 | struct usb_card_rec *cardp = usb_get_intfdata(intf); | |
219 | wlan_private *priv = (wlan_private *) cardp->priv; | |
220 | wlan_adapter *adapter = NULL; | |
221 | ||
222 | adapter = priv->adapter; | |
223 | ||
224 | /* | |
225 | * Update Surprise removed to TRUE | |
226 | */ | |
227 | adapter->surpriseremoved = 1; | |
228 | ||
229 | /* card is removed and we can call wlan_remove_card */ | |
9012b28a | 230 | lbs_deb_usbd(&cardp->udev->dev, "call remove card\n"); |
876c9d3a MT |
231 | wlan_remove_card(cardp); |
232 | ||
233 | /* Unlink and free urb */ | |
234 | if_usb_free(cardp); | |
235 | ||
236 | usb_set_intfdata(intf, NULL); | |
237 | usb_put_dev(interface_to_usbdev(intf)); | |
238 | ||
239 | return; | |
240 | } | |
241 | ||
242 | /** | |
243 | * @brief This function download FW | |
244 | * @param priv pointer to wlan_private | |
245 | * @return 0 | |
246 | */ | |
247 | static int if_prog_firmware(wlan_private * priv) | |
248 | { | |
249 | struct usb_card_rec *cardp = priv->wlan_dev.card; | |
250 | struct FWData *fwdata; | |
251 | struct fwheader *fwheader; | |
252 | u8 *firmware = priv->firmware->data; | |
253 | ||
254 | fwdata = kmalloc(sizeof(struct FWData), GFP_ATOMIC); | |
255 | ||
256 | if (!fwdata) | |
257 | return -1; | |
258 | ||
259 | fwheader = &fwdata->fwheader; | |
260 | ||
261 | if (!cardp->CRC_OK) { | |
262 | cardp->totalbytes = cardp->fwlastblksent; | |
263 | cardp->fwseqnum = cardp->lastseqnum - 1; | |
264 | } | |
265 | ||
9012b28a HS |
266 | /* |
267 | lbs_deb_usbd(&cardp->udev->dev, "totalbytes = %d\n", | |
876c9d3a | 268 | cardp->totalbytes); |
9012b28a | 269 | */ |
876c9d3a MT |
270 | |
271 | memcpy(fwheader, &firmware[cardp->totalbytes], | |
272 | sizeof(struct fwheader)); | |
273 | ||
274 | cardp->fwlastblksent = cardp->totalbytes; | |
275 | cardp->totalbytes += sizeof(struct fwheader); | |
276 | ||
9012b28a | 277 | /* lbs_deb_usbd(&cardp->udev->dev,"Copy Data\n"); */ |
876c9d3a MT |
278 | memcpy(fwdata->data, &firmware[cardp->totalbytes], |
279 | fwdata->fwheader.datalength); | |
280 | ||
9012b28a HS |
281 | /* |
282 | lbs_deb_usbd(&cardp->udev->dev, | |
876c9d3a | 283 | "Data length = %d\n", fwdata->fwheader.datalength); |
9012b28a | 284 | */ |
876c9d3a MT |
285 | |
286 | cardp->fwseqnum = cardp->fwseqnum + 1; | |
287 | ||
288 | fwdata->seqnum = cardp->fwseqnum; | |
289 | cardp->lastseqnum = fwdata->seqnum; | |
290 | cardp->totalbytes += fwdata->fwheader.datalength; | |
291 | ||
292 | if (fwheader->dnldcmd == FW_HAS_DATA_TO_RECV) { | |
9012b28a HS |
293 | /* |
294 | lbs_deb_usbd(&cardp->udev->dev, "There is data to follow\n"); | |
295 | lbs_deb_usbd(&cardp->udev->dev, | |
876c9d3a MT |
296 | "seqnum = %d totalbytes = %d\n", cardp->fwseqnum, |
297 | cardp->totalbytes); | |
9012b28a | 298 | */ |
876c9d3a MT |
299 | memcpy(cardp->bulk_out_buffer, fwheader, FW_DATA_XMIT_SIZE); |
300 | usb_tx_block(priv, cardp->bulk_out_buffer, FW_DATA_XMIT_SIZE); | |
301 | ||
302 | } else if (fwdata->fwheader.dnldcmd == FW_HAS_LAST_BLOCK) { | |
9012b28a HS |
303 | /* |
304 | lbs_deb_usbd(&cardp->udev->dev, | |
876c9d3a | 305 | "Host has finished FW downloading\n"); |
9012b28a | 306 | lbs_deb_usbd(&cardp->udev->dev, |
876c9d3a | 307 | "Donwloading FW JUMP BLOCK\n"); |
9012b28a | 308 | */ |
876c9d3a MT |
309 | memcpy(cardp->bulk_out_buffer, fwheader, FW_DATA_XMIT_SIZE); |
310 | usb_tx_block(priv, cardp->bulk_out_buffer, FW_DATA_XMIT_SIZE); | |
311 | cardp->fwfinalblk = 1; | |
312 | } | |
313 | ||
9012b28a HS |
314 | /* |
315 | lbs_deb_usbd(&cardp->udev->dev, | |
876c9d3a MT |
316 | "The firmware download is done size is %d\n", |
317 | cardp->totalbytes); | |
9012b28a | 318 | */ |
876c9d3a MT |
319 | |
320 | kfree(fwdata); | |
321 | ||
322 | return 0; | |
323 | } | |
324 | ||
325 | static int libertas_do_reset(wlan_private *priv) | |
326 | { | |
327 | int ret; | |
328 | struct usb_card_rec *cardp = priv->wlan_dev.card; | |
329 | ||
330 | ret = usb_reset_device(cardp->udev); | |
331 | if (!ret) { | |
332 | msleep(10); | |
333 | reset_device(priv); | |
334 | msleep(10); | |
335 | } | |
336 | return ret; | |
337 | } | |
338 | ||
339 | /** | |
340 | * @brief This function transfer the data to the device. | |
341 | * @param priv pointer to wlan_private | |
342 | * @param payload pointer to payload data | |
343 | * @param nb data length | |
344 | * @return 0 or -1 | |
345 | */ | |
346 | int usb_tx_block(wlan_private * priv, u8 * payload, u16 nb) | |
347 | { | |
348 | /* pointer to card structure */ | |
349 | struct usb_card_rec *cardp = priv->wlan_dev.card; | |
350 | int ret = -1; | |
351 | ||
352 | /* check if device is removed */ | |
353 | if (priv->adapter->surpriseremoved) { | |
9012b28a | 354 | lbs_deb_usbd(&cardp->udev->dev, "Device removed\n"); |
876c9d3a MT |
355 | goto tx_ret; |
356 | } | |
357 | ||
358 | usb_fill_bulk_urb(cardp->tx_urb, cardp->udev, | |
359 | usb_sndbulkpipe(cardp->udev, | |
360 | cardp->bulk_out_endpointAddr), | |
361 | payload, nb, if_usb_write_bulk_callback, priv); | |
362 | ||
363 | cardp->tx_urb->transfer_flags |= URB_ZERO_PACKET; | |
364 | ||
365 | if ((ret = usb_submit_urb(cardp->tx_urb, GFP_ATOMIC))) { | |
366 | /* transfer failed */ | |
9012b28a | 367 | lbs_deb_usbd(&cardp->udev->dev, "usb_submit_urb failed\n"); |
876c9d3a MT |
368 | ret = -1; |
369 | } else { | |
9012b28a | 370 | /* lbs_deb_usbd(&cardp->udev->dev, "usb_submit_urb success\n"); */ |
876c9d3a MT |
371 | ret = 0; |
372 | } | |
373 | ||
374 | tx_ret: | |
375 | return ret; | |
376 | } | |
377 | ||
378 | static int __if_usb_submit_rx_urb(wlan_private * priv, | |
379 | void (*callbackfn) | |
380 | (struct urb *urb)) | |
381 | { | |
382 | struct usb_card_rec *cardp = priv->wlan_dev.card; | |
383 | struct sk_buff *skb; | |
384 | struct read_cb_info *rinfo = &cardp->rinfo; | |
385 | int ret = -1; | |
386 | ||
387 | if (!(skb = dev_alloc_skb(MRVDRV_ETH_RX_PACKET_BUFFER_SIZE))) { | |
388 | lbs_pr_err("No free skb\n"); | |
389 | goto rx_ret; | |
390 | } | |
391 | ||
392 | rinfo->skb = skb; | |
393 | ||
394 | /* Fill the receive configuration URB and initialise the Rx call back */ | |
395 | usb_fill_bulk_urb(cardp->rx_urb, cardp->udev, | |
396 | usb_rcvbulkpipe(cardp->udev, | |
397 | cardp->bulk_in_endpointAddr), | |
4269e2ad | 398 | (void *) (skb->tail + (size_t) IPFIELD_ALIGN_OFFSET), |
876c9d3a MT |
399 | MRVDRV_ETH_RX_PACKET_BUFFER_SIZE, callbackfn, |
400 | rinfo); | |
401 | ||
402 | cardp->rx_urb->transfer_flags |= URB_ZERO_PACKET; | |
403 | ||
9012b28a | 404 | /* lbs_deb_usbd(&cardp->udev->dev, "Pointer for rx_urb %p\n", cardp->rx_urb); */ |
876c9d3a MT |
405 | if ((ret = usb_submit_urb(cardp->rx_urb, GFP_ATOMIC))) { |
406 | /* handle failure conditions */ | |
9012b28a | 407 | lbs_deb_usbd(&cardp->udev->dev, "Submit Rx URB failed\n"); |
876c9d3a MT |
408 | ret = -1; |
409 | } else { | |
9012b28a | 410 | /* lbs_deb_usbd(&cardp->udev->dev, "Submit Rx URB success\n"); */ |
876c9d3a MT |
411 | ret = 0; |
412 | } | |
413 | ||
414 | rx_ret: | |
415 | return ret; | |
416 | } | |
417 | ||
418 | static inline int if_usb_submit_rx_urb_fwload(wlan_private * priv) | |
419 | { | |
420 | return __if_usb_submit_rx_urb(priv, &if_usb_receive_fwload); | |
421 | } | |
422 | ||
423 | static inline int if_usb_submit_rx_urb(wlan_private * priv) | |
424 | { | |
425 | return __if_usb_submit_rx_urb(priv, &if_usb_receive); | |
426 | } | |
427 | ||
428 | static void if_usb_receive_fwload(struct urb *urb) | |
429 | { | |
430 | struct read_cb_info *rinfo = (struct read_cb_info *)urb->context; | |
431 | wlan_private *priv = rinfo->priv; | |
432 | struct sk_buff *skb = rinfo->skb; | |
433 | struct usb_card_rec *cardp = (struct usb_card_rec *)priv->wlan_dev.card; | |
434 | struct fwsyncheader *syncfwheader; | |
435 | struct bootcmdrespStr bootcmdresp; | |
436 | ||
437 | if (urb->status) { | |
9012b28a | 438 | lbs_deb_usbd(&cardp->udev->dev, |
876c9d3a MT |
439 | "URB status is failed during fw load\n"); |
440 | kfree_skb(skb); | |
441 | return; | |
442 | } | |
443 | ||
444 | if (cardp->bootcmdresp == 0) { | |
445 | memcpy (&bootcmdresp, skb->data + IPFIELD_ALIGN_OFFSET, | |
446 | sizeof(bootcmdresp)); | |
447 | if (cardp->udev->descriptor.bcdDevice < 0x3106) { | |
448 | kfree_skb(skb); | |
449 | if_usb_submit_rx_urb_fwload(priv); | |
450 | cardp->bootcmdresp = 1; | |
9012b28a | 451 | lbs_deb_usbd(&cardp->udev->dev, |
876c9d3a MT |
452 | "Received valid boot command response\n"); |
453 | return; | |
454 | } | |
455 | if (bootcmdresp.u32magicnumber != BOOT_CMD_MAGIC_NUMBER) { | |
456 | lbs_pr_info( | |
457 | "boot cmd response wrong magic number (0x%x)\n", | |
458 | bootcmdresp.u32magicnumber); | |
459 | } else if (bootcmdresp.u8cmd_tag != BOOT_CMD_FW_BY_USB) { | |
460 | lbs_pr_info( | |
461 | "boot cmd response cmd_tag error (%d)\n", | |
462 | bootcmdresp.u8cmd_tag); | |
463 | } else if (bootcmdresp.u8result != BOOT_CMD_RESP_OK) { | |
464 | lbs_pr_info( | |
465 | "boot cmd response result error (%d)\n", | |
466 | bootcmdresp.u8result); | |
467 | } else { | |
468 | cardp->bootcmdresp = 1; | |
9012b28a | 469 | lbs_deb_usbd(&cardp->udev->dev, |
876c9d3a MT |
470 | "Received valid boot command response\n"); |
471 | } | |
472 | kfree_skb(skb); | |
473 | if_usb_submit_rx_urb_fwload(priv); | |
474 | return; | |
475 | } | |
476 | ||
477 | syncfwheader = kmalloc(sizeof(struct fwsyncheader), GFP_ATOMIC); | |
478 | if (!syncfwheader) { | |
9012b28a | 479 | lbs_deb_usbd(&cardp->udev->dev, "Failure to allocate syncfwheader\n"); |
876c9d3a MT |
480 | kfree_skb(skb); |
481 | return; | |
482 | } | |
483 | ||
484 | memcpy(syncfwheader, skb->data + IPFIELD_ALIGN_OFFSET, | |
485 | sizeof(struct fwsyncheader)); | |
486 | ||
487 | if (!syncfwheader->cmd) { | |
9012b28a HS |
488 | /* |
489 | lbs_deb_usbd(&cardp->udev->dev, | |
876c9d3a | 490 | "FW received Blk with correct CRC\n"); |
9012b28a | 491 | lbs_deb_usbd(&cardp->udev->dev, |
876c9d3a MT |
492 | "FW received Blk seqnum = %d\n", |
493 | syncfwheader->seqnum); | |
9012b28a | 494 | */ |
876c9d3a MT |
495 | cardp->CRC_OK = 1; |
496 | } else { | |
9012b28a | 497 | lbs_deb_usbd(&cardp->udev->dev, |
876c9d3a MT |
498 | "FW received Blk with CRC error\n"); |
499 | cardp->CRC_OK = 0; | |
500 | } | |
501 | ||
502 | kfree_skb(skb); | |
503 | ||
504 | if (cardp->fwfinalblk) { | |
505 | cardp->fwdnldover = 1; | |
506 | goto exit; | |
507 | } | |
508 | ||
509 | if_prog_firmware(priv); | |
510 | ||
511 | if_usb_submit_rx_urb_fwload(priv); | |
512 | exit: | |
513 | kfree(syncfwheader); | |
514 | ||
515 | return; | |
516 | ||
517 | } | |
518 | ||
519 | #define MRVDRV_MIN_PKT_LEN 30 | |
520 | ||
521 | static inline void process_cmdtypedata(int recvlength, struct sk_buff *skb, | |
522 | struct usb_card_rec *cardp, | |
523 | wlan_private *priv) | |
524 | { | |
525 | if (recvlength > MRVDRV_ETH_RX_PACKET_BUFFER_SIZE + | |
526 | MESSAGE_HEADER_LEN || recvlength < MRVDRV_MIN_PKT_LEN) { | |
9012b28a | 527 | lbs_deb_usbd(&cardp->udev->dev, |
876c9d3a MT |
528 | "Packet length is Invalid\n"); |
529 | kfree_skb(skb); | |
530 | return; | |
531 | } | |
532 | ||
533 | skb_reserve(skb, IPFIELD_ALIGN_OFFSET); | |
534 | skb_put(skb, recvlength); | |
535 | skb_pull(skb, MESSAGE_HEADER_LEN); | |
536 | libertas_process_rxed_packet(priv, skb); | |
537 | priv->wlan_dev.upld_len = (recvlength - MESSAGE_HEADER_LEN); | |
538 | } | |
539 | ||
540 | static inline void process_cmdrequest(int recvlength, u8 *recvbuff, | |
541 | struct sk_buff *skb, | |
542 | struct usb_card_rec *cardp, | |
543 | wlan_private *priv) | |
544 | { | |
545 | u8 *cmdbuf; | |
546 | if (recvlength > MRVDRV_SIZE_OF_CMD_BUFFER) { | |
9012b28a | 547 | lbs_deb_usbd(&cardp->udev->dev, |
876c9d3a MT |
548 | "The receive buffer is too large\n"); |
549 | kfree_skb(skb); | |
550 | return; | |
551 | } | |
552 | ||
553 | if (!in_interrupt()) | |
554 | BUG(); | |
555 | ||
556 | spin_lock(&priv->adapter->driver_lock); | |
557 | /* take care of cur_cmd = NULL case by reading the | |
558 | * data to clear the interrupt */ | |
559 | if (!priv->adapter->cur_cmd) { | |
560 | cmdbuf = priv->wlan_dev.upld_buf; | |
561 | priv->adapter->hisregcpy &= ~his_cmdupldrdy; | |
562 | } else | |
563 | cmdbuf = priv->adapter->cur_cmd->bufvirtualaddr; | |
564 | ||
565 | cardp->usb_int_cause |= his_cmdupldrdy; | |
566 | priv->wlan_dev.upld_len = (recvlength - MESSAGE_HEADER_LEN); | |
567 | memcpy(cmdbuf, recvbuff + MESSAGE_HEADER_LEN, | |
568 | priv->wlan_dev.upld_len); | |
569 | ||
570 | kfree_skb(skb); | |
571 | libertas_interrupt(priv->wlan_dev.netdev); | |
572 | spin_unlock(&priv->adapter->driver_lock); | |
573 | ||
9012b28a | 574 | lbs_deb_usbd(&cardp->udev->dev, |
876c9d3a MT |
575 | "Wake up main thread to handle cmd response\n"); |
576 | ||
577 | return; | |
578 | } | |
579 | ||
580 | /** | |
581 | * @brief This function reads of the packet into the upload buff, | |
582 | * wake up the main thread and initialise the Rx callack. | |
583 | * | |
584 | * @param urb pointer to struct urb | |
585 | * @return N/A | |
586 | */ | |
587 | static void if_usb_receive(struct urb *urb) | |
588 | { | |
589 | struct read_cb_info *rinfo = (struct read_cb_info *)urb->context; | |
590 | wlan_private *priv = rinfo->priv; | |
591 | struct sk_buff *skb = rinfo->skb; | |
592 | struct usb_card_rec *cardp = (struct usb_card_rec *)priv->wlan_dev.card; | |
593 | ||
594 | int recvlength = urb->actual_length; | |
595 | u8 *recvbuff = NULL; | |
596 | u32 recvtype; | |
597 | ||
9012b28a | 598 | lbs_deb_enter(LBS_DEB_USB); |
876c9d3a MT |
599 | |
600 | if (recvlength) { | |
601 | if (urb->status) { | |
9012b28a | 602 | lbs_deb_usbd(&cardp->udev->dev, |
876c9d3a MT |
603 | "URB status is failed\n"); |
604 | kfree_skb(skb); | |
605 | goto setup_for_next; | |
606 | } | |
607 | ||
608 | recvbuff = skb->data + IPFIELD_ALIGN_OFFSET; | |
609 | memcpy(&recvtype, recvbuff, sizeof(u32)); | |
9012b28a | 610 | lbs_deb_usbd(&cardp->udev->dev, |
876c9d3a | 611 | "Recv length = 0x%x\n", recvlength); |
9012b28a | 612 | lbs_deb_usbd(&cardp->udev->dev, |
876c9d3a MT |
613 | "Receive type = 0x%X\n", recvtype); |
614 | recvtype = le32_to_cpu(recvtype); | |
9012b28a | 615 | lbs_deb_usbd(&cardp->udev->dev, |
876c9d3a MT |
616 | "Receive type after = 0x%X\n", recvtype); |
617 | } else if (urb->status) | |
618 | goto rx_exit; | |
619 | ||
620 | ||
621 | switch (recvtype) { | |
622 | case CMD_TYPE_DATA: | |
623 | process_cmdtypedata(recvlength, skb, cardp, priv); | |
624 | break; | |
625 | ||
626 | case CMD_TYPE_REQUEST: | |
627 | process_cmdrequest(recvlength, recvbuff, skb, cardp, priv); | |
628 | break; | |
629 | ||
630 | case CMD_TYPE_INDICATION: | |
631 | /* Event cause handling */ | |
632 | spin_lock(&priv->adapter->driver_lock); | |
633 | cardp->usb_event_cause = *(u32 *) (recvbuff + MESSAGE_HEADER_LEN); | |
9012b28a | 634 | lbs_deb_usbd(&cardp->udev->dev,"**EVENT** 0x%X\n", |
876c9d3a MT |
635 | cardp->usb_event_cause); |
636 | if (cardp->usb_event_cause & 0xffff0000) { | |
637 | libertas_send_tx_feedback(priv); | |
12a4d265 | 638 | spin_unlock(&priv->adapter->driver_lock); |
876c9d3a MT |
639 | break; |
640 | } | |
641 | cardp->usb_event_cause = le32_to_cpu(cardp->usb_event_cause) << 3; | |
642 | cardp->usb_int_cause |= his_cardevent; | |
643 | kfree_skb(skb); | |
644 | libertas_interrupt(priv->wlan_dev.netdev); | |
645 | spin_unlock(&priv->adapter->driver_lock); | |
646 | goto rx_exit; | |
647 | default: | |
648 | kfree_skb(skb); | |
649 | break; | |
650 | } | |
651 | ||
652 | setup_for_next: | |
653 | if_usb_submit_rx_urb(priv); | |
654 | rx_exit: | |
9012b28a | 655 | lbs_deb_leave(LBS_DEB_USB); |
876c9d3a MT |
656 | } |
657 | ||
658 | /** | |
659 | * @brief This function downloads data to FW | |
660 | * @param priv pointer to wlan_private structure | |
661 | * @param type type of data | |
662 | * @param buf pointer to data buffer | |
663 | * @param len number of bytes | |
664 | * @return 0 or -1 | |
665 | */ | |
666 | int libertas_sbi_host_to_card(wlan_private * priv, u8 type, u8 * payload, u16 nb) | |
667 | { | |
668 | int ret = -1; | |
669 | u32 tmp; | |
670 | struct usb_card_rec *cardp = (struct usb_card_rec *)priv->wlan_dev.card; | |
671 | ||
9012b28a HS |
672 | lbs_deb_usbd(&cardp->udev->dev,"*** type = %u\n", type); |
673 | lbs_deb_usbd(&cardp->udev->dev,"size after = %d\n", nb); | |
876c9d3a MT |
674 | |
675 | if (type == MVMS_CMD) { | |
676 | tmp = cpu_to_le32(CMD_TYPE_REQUEST); | |
677 | priv->wlan_dev.dnld_sent = DNLD_CMD_SENT; | |
678 | memcpy(cardp->bulk_out_buffer, (u8 *) & tmp, | |
679 | MESSAGE_HEADER_LEN); | |
680 | ||
681 | } else { | |
682 | tmp = cpu_to_le32(CMD_TYPE_DATA); | |
683 | priv->wlan_dev.dnld_sent = DNLD_DATA_SENT; | |
684 | memcpy(cardp->bulk_out_buffer, (u8 *) & tmp, | |
685 | MESSAGE_HEADER_LEN); | |
686 | } | |
687 | ||
688 | memcpy((cardp->bulk_out_buffer + MESSAGE_HEADER_LEN), payload, nb); | |
689 | ||
690 | ret = | |
691 | usb_tx_block(priv, cardp->bulk_out_buffer, nb + MESSAGE_HEADER_LEN); | |
692 | ||
693 | return ret; | |
694 | } | |
695 | ||
696 | /* called with adapter->driver_lock held */ | |
697 | int libertas_sbi_get_int_status(wlan_private * priv, u8 * ireg) | |
698 | { | |
699 | struct usb_card_rec *cardp = priv->wlan_dev.card; | |
700 | ||
701 | *ireg = cardp->usb_int_cause; | |
702 | cardp->usb_int_cause = 0; | |
703 | ||
9012b28a | 704 | lbs_deb_usbd(&cardp->udev->dev,"Int cause is 0x%X\n", *ireg); |
876c9d3a MT |
705 | |
706 | return 0; | |
707 | } | |
708 | ||
709 | int libertas_sbi_read_event_cause(wlan_private * priv) | |
710 | { | |
711 | struct usb_card_rec *cardp = priv->wlan_dev.card; | |
712 | priv->adapter->eventcause = cardp->usb_event_cause; | |
713 | /* Re-submit rx urb here to avoid event lost issue */ | |
714 | if_usb_submit_rx_urb(priv); | |
715 | return 0; | |
716 | } | |
717 | ||
718 | int reset_device(wlan_private *priv) | |
719 | { | |
720 | int ret; | |
721 | ||
722 | ret = libertas_prepare_and_send_command(priv, cmd_802_11_reset, | |
723 | cmd_act_halt, 0, 0, NULL); | |
724 | msleep_interruptible(10); | |
725 | ||
726 | return ret; | |
727 | } | |
728 | ||
729 | int libertas_sbi_unregister_dev(wlan_private * priv) | |
730 | { | |
731 | int ret = 0; | |
732 | ||
733 | /* Need to send a Reset command to device before USB resources freed | |
734 | * and wlan_remove_card() called, then device can handle FW download | |
735 | * again. | |
736 | */ | |
737 | if (priv) | |
738 | reset_device(priv); | |
739 | ||
740 | return ret; | |
741 | } | |
742 | ||
743 | ||
744 | /** | |
745 | * @brief This function register usb device and initialize parameter | |
746 | * @param priv pointer to wlan_private | |
747 | * @return 0 or -1 | |
748 | */ | |
749 | int libertas_sbi_register_dev(wlan_private * priv) | |
750 | { | |
876c9d3a | 751 | struct usb_card_rec *cardp = (struct usb_card_rec *)priv->wlan_dev.card; |
9012b28a HS |
752 | |
753 | lbs_deb_enter(LBS_DEB_USB); | |
876c9d3a MT |
754 | |
755 | cardp->priv = priv; | |
756 | cardp->eth_dev = priv->wlan_dev.netdev; | |
757 | priv->hotplug_device = &(cardp->udev->dev); | |
758 | ||
759 | SET_NETDEV_DEV(cardp->eth_dev, &(cardp->udev->dev)); | |
760 | ||
9012b28a | 761 | lbs_deb_usbd(&cardp->udev->dev, "udev pointer is at %p\n", |
876c9d3a MT |
762 | cardp->udev); |
763 | ||
9012b28a | 764 | lbs_deb_leave(LBS_DEB_USB); |
876c9d3a MT |
765 | return 0; |
766 | } | |
767 | ||
768 | ||
769 | ||
770 | int libertas_sbi_prog_firmware(wlan_private * priv) | |
771 | { | |
772 | struct usb_card_rec *cardp = priv->wlan_dev.card; | |
773 | int i = 0; | |
774 | static int reset_count = 10; | |
9012b28a | 775 | int ret = 0; |
876c9d3a | 776 | |
9012b28a | 777 | lbs_deb_enter(LBS_DEB_USB); |
876c9d3a MT |
778 | |
779 | cardp->rinfo.priv = priv; | |
780 | ||
781 | restart: | |
782 | if (if_usb_submit_rx_urb_fwload(priv) < 0) { | |
9012b28a HS |
783 | lbs_deb_usbd(&cardp->udev->dev, "URB submission is failed\n"); |
784 | ret = -1; | |
785 | goto done; | |
876c9d3a MT |
786 | } |
787 | ||
876c9d3a MT |
788 | cardp->bootcmdresp = 0; |
789 | do { | |
790 | int j = 0; | |
791 | i++; | |
792 | /* Issue Boot command = 1, Boot from Download-FW */ | |
793 | if_usb_issue_boot_command(priv, BOOT_CMD_FW_BY_USB); | |
794 | /* wait for command response */ | |
795 | do { | |
796 | j++; | |
797 | msleep_interruptible(100); | |
798 | } while (cardp->bootcmdresp == 0 && j < 10); | |
799 | } while (cardp->bootcmdresp == 0 && i < 5); | |
800 | ||
801 | if (cardp->bootcmdresp == 0) { | |
802 | if (--reset_count >= 0) { | |
803 | libertas_do_reset(priv); | |
804 | goto restart; | |
805 | } | |
806 | return -1; | |
807 | } | |
876c9d3a MT |
808 | |
809 | i = 0; | |
810 | priv->adapter->fw_ready = 0; | |
811 | ||
812 | cardp->totalbytes = 0; | |
813 | cardp->fwlastblksent = 0; | |
814 | cardp->CRC_OK = 1; | |
815 | cardp->fwdnldover = 0; | |
816 | cardp->fwseqnum = -1; | |
817 | cardp->totalbytes = 0; | |
818 | cardp->fwfinalblk = 0; | |
819 | ||
820 | if_prog_firmware(priv); | |
821 | ||
822 | do { | |
9012b28a | 823 | lbs_deb_usbd(&cardp->udev->dev,"Wlan sched timeout\n"); |
876c9d3a MT |
824 | i++; |
825 | msleep_interruptible(100); | |
826 | if (priv->adapter->surpriseremoved || i >= 20) | |
827 | break; | |
828 | } while (!cardp->fwdnldover); | |
829 | ||
830 | if (!cardp->fwdnldover) { | |
831 | lbs_pr_info("failed to load fw, resetting device!\n"); | |
832 | if (--reset_count >= 0) { | |
833 | libertas_do_reset(priv); | |
834 | goto restart; | |
835 | } | |
836 | ||
837 | lbs_pr_info("FW download failure, time = %d ms\n", i * 100); | |
9012b28a HS |
838 | ret = -1; |
839 | goto done; | |
876c9d3a MT |
840 | } |
841 | ||
842 | if_usb_submit_rx_urb(priv); | |
843 | ||
844 | /* Delay 200 ms to waiting for the FW ready */ | |
845 | msleep_interruptible(200); | |
846 | ||
847 | priv->adapter->fw_ready = 1; | |
848 | ||
9012b28a HS |
849 | done: |
850 | lbs_deb_leave_args(LBS_DEB_USB, "ret %d", ret); | |
851 | return ret; | |
876c9d3a MT |
852 | } |
853 | ||
854 | /** | |
855 | * @brief Given a usb_card_rec return its wlan_private | |
856 | * @param card pointer to a usb_card_rec | |
857 | * @return pointer to wlan_private | |
858 | */ | |
859 | wlan_private *libertas_sbi_get_priv(void *card) | |
860 | { | |
861 | struct usb_card_rec *cardp = card; | |
862 | return cardp->priv; | |
863 | } | |
864 | ||
876c9d3a MT |
865 | #ifdef CONFIG_PM |
866 | static int if_usb_suspend(struct usb_interface *intf, pm_message_t message) | |
867 | { | |
868 | struct usb_card_rec *cardp = usb_get_intfdata(intf); | |
869 | wlan_private *priv = cardp->priv; | |
870 | ||
9012b28a | 871 | lbs_deb_enter(LBS_DEB_USB); |
876c9d3a MT |
872 | |
873 | if (priv->adapter->psstate != PS_STATE_FULL_POWER) | |
874 | return -1; | |
875 | ||
876 | netif_device_detach(cardp->eth_dev); | |
877 | ||
878 | /* Unlink tx & rx urb */ | |
879 | usb_kill_urb(cardp->tx_urb); | |
880 | usb_kill_urb(cardp->rx_urb); | |
881 | ||
882 | cardp->rx_urb_recall = 1; | |
883 | ||
9012b28a | 884 | lbs_deb_leave(LBS_DEB_USB); |
876c9d3a MT |
885 | return 0; |
886 | } | |
887 | ||
888 | static int if_usb_resume(struct usb_interface *intf) | |
889 | { | |
890 | struct usb_card_rec *cardp = usb_get_intfdata(intf); | |
891 | ||
9012b28a | 892 | lbs_deb_enter(LBS_DEB_USB); |
876c9d3a MT |
893 | |
894 | cardp->rx_urb_recall = 0; | |
895 | ||
896 | if_usb_submit_rx_urb(cardp->priv); | |
897 | ||
898 | netif_device_attach(cardp->eth_dev); | |
899 | ||
9012b28a | 900 | lbs_deb_leave(LBS_DEB_USB); |
876c9d3a MT |
901 | return 0; |
902 | } | |
903 | #else | |
904 | #define if_usb_suspend NULL | |
905 | #define if_usb_resume NULL | |
906 | #endif | |
907 | ||
908 | static struct usb_driver if_usb_driver = { | |
909 | /* driver name */ | |
910 | .name = usbdriver_name, | |
911 | /* probe function name */ | |
912 | .probe = if_usb_probe, | |
913 | /* disconnect function name */ | |
914 | .disconnect = if_usb_disconnect, | |
915 | /* device signature table */ | |
916 | .id_table = if_usb_table, | |
917 | .suspend = if_usb_suspend, | |
918 | .resume = if_usb_resume, | |
919 | }; | |
920 | ||
921 | /** | |
922 | * @brief This function registers driver. | |
923 | * @param add pointer to add_card callback function | |
924 | * @param remove pointer to remove card callback function | |
925 | * @param arg pointer to call back function parameter | |
926 | * @return dummy success variable | |
927 | */ | |
928 | int libertas_sbi_register(void) | |
929 | { | |
930 | /* | |
931 | * API registers the Marvell USB driver | |
932 | * to the USB system | |
933 | */ | |
934 | usb_register(&if_usb_driver); | |
935 | ||
936 | /* Return success to wlan layer */ | |
937 | return 0; | |
938 | } | |
939 | ||
940 | /** | |
941 | * @brief This function removes usb driver. | |
942 | * @return N/A | |
943 | */ | |
944 | void libertas_sbi_unregister(void) | |
945 | { | |
946 | /* API unregisters the driver from USB subsystem */ | |
947 | usb_deregister(&if_usb_driver); | |
948 | return; | |
949 | } |