Commit | Line | Data |
---|---|---|
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; | |
78523daa | 102 | wlan_private *priv; |
876c9d3a MT |
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 | */ | |
78523daa HS |
190 | if (!(priv = wlan_add_card(usb_cardp))) |
191 | goto dealloc; | |
192 | if (wlan_add_mesh(priv)) | |
876c9d3a MT |
193 | goto dealloc; |
194 | ||
195 | usb_get_dev(udev); | |
196 | usb_set_intfdata(intf, usb_cardp); | |
197 | ||
198 | /* | |
199 | * return card structure, which can be got back in the | |
200 | * diconnect function as the ptr | |
201 | * argument. | |
202 | */ | |
203 | return 0; | |
204 | ||
205 | dealloc: | |
206 | if_usb_free(usb_cardp); | |
207 | ||
208 | error: | |
209 | return -ENOMEM; | |
210 | } | |
211 | ||
212 | /** | |
213 | * @brief free resource and cleanup | |
214 | * @param udev pointer to usb_device | |
215 | * @param ptr pointer to usb_cardp | |
216 | * @return N/A | |
217 | */ | |
218 | static void if_usb_disconnect(struct usb_interface *intf) | |
219 | { | |
220 | struct usb_card_rec *cardp = usb_get_intfdata(intf); | |
221 | wlan_private *priv = (wlan_private *) cardp->priv; | |
222 | wlan_adapter *adapter = NULL; | |
223 | ||
224 | adapter = priv->adapter; | |
225 | ||
226 | /* | |
227 | * Update Surprise removed to TRUE | |
228 | */ | |
229 | adapter->surpriseremoved = 1; | |
230 | ||
231 | /* card is removed and we can call wlan_remove_card */ | |
9012b28a | 232 | lbs_deb_usbd(&cardp->udev->dev, "call remove card\n"); |
78523daa | 233 | wlan_remove_mesh(priv); |
1ac812f1 | 234 | wlan_remove_card(priv); |
876c9d3a MT |
235 | |
236 | /* Unlink and free urb */ | |
237 | if_usb_free(cardp); | |
238 | ||
239 | usb_set_intfdata(intf, NULL); | |
240 | usb_put_dev(interface_to_usbdev(intf)); | |
241 | ||
242 | return; | |
243 | } | |
244 | ||
245 | /** | |
246 | * @brief This function download FW | |
247 | * @param priv pointer to wlan_private | |
248 | * @return 0 | |
249 | */ | |
250 | static int if_prog_firmware(wlan_private * priv) | |
251 | { | |
252 | struct usb_card_rec *cardp = priv->wlan_dev.card; | |
253 | struct FWData *fwdata; | |
254 | struct fwheader *fwheader; | |
255 | u8 *firmware = priv->firmware->data; | |
256 | ||
257 | fwdata = kmalloc(sizeof(struct FWData), GFP_ATOMIC); | |
258 | ||
259 | if (!fwdata) | |
260 | return -1; | |
261 | ||
262 | fwheader = &fwdata->fwheader; | |
263 | ||
264 | if (!cardp->CRC_OK) { | |
265 | cardp->totalbytes = cardp->fwlastblksent; | |
266 | cardp->fwseqnum = cardp->lastseqnum - 1; | |
267 | } | |
268 | ||
9012b28a HS |
269 | /* |
270 | lbs_deb_usbd(&cardp->udev->dev, "totalbytes = %d\n", | |
876c9d3a | 271 | cardp->totalbytes); |
9012b28a | 272 | */ |
876c9d3a MT |
273 | |
274 | memcpy(fwheader, &firmware[cardp->totalbytes], | |
275 | sizeof(struct fwheader)); | |
276 | ||
277 | cardp->fwlastblksent = cardp->totalbytes; | |
278 | cardp->totalbytes += sizeof(struct fwheader); | |
279 | ||
9012b28a | 280 | /* lbs_deb_usbd(&cardp->udev->dev,"Copy Data\n"); */ |
876c9d3a MT |
281 | memcpy(fwdata->data, &firmware[cardp->totalbytes], |
282 | fwdata->fwheader.datalength); | |
283 | ||
9012b28a HS |
284 | /* |
285 | lbs_deb_usbd(&cardp->udev->dev, | |
876c9d3a | 286 | "Data length = %d\n", fwdata->fwheader.datalength); |
9012b28a | 287 | */ |
876c9d3a MT |
288 | |
289 | cardp->fwseqnum = cardp->fwseqnum + 1; | |
290 | ||
291 | fwdata->seqnum = cardp->fwseqnum; | |
292 | cardp->lastseqnum = fwdata->seqnum; | |
293 | cardp->totalbytes += fwdata->fwheader.datalength; | |
294 | ||
295 | if (fwheader->dnldcmd == FW_HAS_DATA_TO_RECV) { | |
9012b28a HS |
296 | /* |
297 | lbs_deb_usbd(&cardp->udev->dev, "There is data to follow\n"); | |
298 | lbs_deb_usbd(&cardp->udev->dev, | |
876c9d3a MT |
299 | "seqnum = %d totalbytes = %d\n", cardp->fwseqnum, |
300 | cardp->totalbytes); | |
9012b28a | 301 | */ |
876c9d3a MT |
302 | memcpy(cardp->bulk_out_buffer, fwheader, FW_DATA_XMIT_SIZE); |
303 | usb_tx_block(priv, cardp->bulk_out_buffer, FW_DATA_XMIT_SIZE); | |
304 | ||
305 | } else if (fwdata->fwheader.dnldcmd == FW_HAS_LAST_BLOCK) { | |
9012b28a HS |
306 | /* |
307 | lbs_deb_usbd(&cardp->udev->dev, | |
876c9d3a | 308 | "Host has finished FW downloading\n"); |
9012b28a | 309 | lbs_deb_usbd(&cardp->udev->dev, |
876c9d3a | 310 | "Donwloading FW JUMP BLOCK\n"); |
9012b28a | 311 | */ |
876c9d3a MT |
312 | memcpy(cardp->bulk_out_buffer, fwheader, FW_DATA_XMIT_SIZE); |
313 | usb_tx_block(priv, cardp->bulk_out_buffer, FW_DATA_XMIT_SIZE); | |
314 | cardp->fwfinalblk = 1; | |
315 | } | |
316 | ||
9012b28a HS |
317 | /* |
318 | lbs_deb_usbd(&cardp->udev->dev, | |
876c9d3a MT |
319 | "The firmware download is done size is %d\n", |
320 | cardp->totalbytes); | |
9012b28a | 321 | */ |
876c9d3a MT |
322 | |
323 | kfree(fwdata); | |
324 | ||
325 | return 0; | |
326 | } | |
327 | ||
328 | static int libertas_do_reset(wlan_private *priv) | |
329 | { | |
330 | int ret; | |
331 | struct usb_card_rec *cardp = priv->wlan_dev.card; | |
332 | ||
333 | ret = usb_reset_device(cardp->udev); | |
334 | if (!ret) { | |
335 | msleep(10); | |
336 | reset_device(priv); | |
337 | msleep(10); | |
338 | } | |
339 | return ret; | |
340 | } | |
341 | ||
342 | /** | |
343 | * @brief This function transfer the data to the device. | |
344 | * @param priv pointer to wlan_private | |
345 | * @param payload pointer to payload data | |
346 | * @param nb data length | |
347 | * @return 0 or -1 | |
348 | */ | |
349 | int usb_tx_block(wlan_private * priv, u8 * payload, u16 nb) | |
350 | { | |
351 | /* pointer to card structure */ | |
352 | struct usb_card_rec *cardp = priv->wlan_dev.card; | |
353 | int ret = -1; | |
354 | ||
355 | /* check if device is removed */ | |
356 | if (priv->adapter->surpriseremoved) { | |
9012b28a | 357 | lbs_deb_usbd(&cardp->udev->dev, "Device removed\n"); |
876c9d3a MT |
358 | goto tx_ret; |
359 | } | |
360 | ||
361 | usb_fill_bulk_urb(cardp->tx_urb, cardp->udev, | |
362 | usb_sndbulkpipe(cardp->udev, | |
363 | cardp->bulk_out_endpointAddr), | |
364 | payload, nb, if_usb_write_bulk_callback, priv); | |
365 | ||
366 | cardp->tx_urb->transfer_flags |= URB_ZERO_PACKET; | |
367 | ||
368 | if ((ret = usb_submit_urb(cardp->tx_urb, GFP_ATOMIC))) { | |
369 | /* transfer failed */ | |
9012b28a | 370 | lbs_deb_usbd(&cardp->udev->dev, "usb_submit_urb failed\n"); |
876c9d3a MT |
371 | ret = -1; |
372 | } else { | |
9012b28a | 373 | /* lbs_deb_usbd(&cardp->udev->dev, "usb_submit_urb success\n"); */ |
876c9d3a MT |
374 | ret = 0; |
375 | } | |
376 | ||
377 | tx_ret: | |
378 | return ret; | |
379 | } | |
380 | ||
381 | static int __if_usb_submit_rx_urb(wlan_private * priv, | |
382 | void (*callbackfn) | |
383 | (struct urb *urb)) | |
384 | { | |
385 | struct usb_card_rec *cardp = priv->wlan_dev.card; | |
386 | struct sk_buff *skb; | |
387 | struct read_cb_info *rinfo = &cardp->rinfo; | |
388 | int ret = -1; | |
389 | ||
390 | if (!(skb = dev_alloc_skb(MRVDRV_ETH_RX_PACKET_BUFFER_SIZE))) { | |
391 | lbs_pr_err("No free skb\n"); | |
392 | goto rx_ret; | |
393 | } | |
394 | ||
395 | rinfo->skb = skb; | |
396 | ||
397 | /* Fill the receive configuration URB and initialise the Rx call back */ | |
398 | usb_fill_bulk_urb(cardp->rx_urb, cardp->udev, | |
399 | usb_rcvbulkpipe(cardp->udev, | |
400 | cardp->bulk_in_endpointAddr), | |
4269e2ad | 401 | (void *) (skb->tail + (size_t) IPFIELD_ALIGN_OFFSET), |
876c9d3a MT |
402 | MRVDRV_ETH_RX_PACKET_BUFFER_SIZE, callbackfn, |
403 | rinfo); | |
404 | ||
405 | cardp->rx_urb->transfer_flags |= URB_ZERO_PACKET; | |
406 | ||
9012b28a | 407 | /* lbs_deb_usbd(&cardp->udev->dev, "Pointer for rx_urb %p\n", cardp->rx_urb); */ |
876c9d3a MT |
408 | if ((ret = usb_submit_urb(cardp->rx_urb, GFP_ATOMIC))) { |
409 | /* handle failure conditions */ | |
9012b28a | 410 | lbs_deb_usbd(&cardp->udev->dev, "Submit Rx URB failed\n"); |
876c9d3a MT |
411 | ret = -1; |
412 | } else { | |
9012b28a | 413 | /* lbs_deb_usbd(&cardp->udev->dev, "Submit Rx URB success\n"); */ |
876c9d3a MT |
414 | ret = 0; |
415 | } | |
416 | ||
417 | rx_ret: | |
418 | return ret; | |
419 | } | |
420 | ||
421 | static inline int if_usb_submit_rx_urb_fwload(wlan_private * priv) | |
422 | { | |
423 | return __if_usb_submit_rx_urb(priv, &if_usb_receive_fwload); | |
424 | } | |
425 | ||
426 | static inline int if_usb_submit_rx_urb(wlan_private * priv) | |
427 | { | |
428 | return __if_usb_submit_rx_urb(priv, &if_usb_receive); | |
429 | } | |
430 | ||
431 | static void if_usb_receive_fwload(struct urb *urb) | |
432 | { | |
433 | struct read_cb_info *rinfo = (struct read_cb_info *)urb->context; | |
434 | wlan_private *priv = rinfo->priv; | |
435 | struct sk_buff *skb = rinfo->skb; | |
436 | struct usb_card_rec *cardp = (struct usb_card_rec *)priv->wlan_dev.card; | |
437 | struct fwsyncheader *syncfwheader; | |
438 | struct bootcmdrespStr bootcmdresp; | |
439 | ||
440 | if (urb->status) { | |
9012b28a | 441 | lbs_deb_usbd(&cardp->udev->dev, |
876c9d3a MT |
442 | "URB status is failed during fw load\n"); |
443 | kfree_skb(skb); | |
444 | return; | |
445 | } | |
446 | ||
447 | if (cardp->bootcmdresp == 0) { | |
448 | memcpy (&bootcmdresp, skb->data + IPFIELD_ALIGN_OFFSET, | |
449 | sizeof(bootcmdresp)); | |
450 | if (cardp->udev->descriptor.bcdDevice < 0x3106) { | |
451 | kfree_skb(skb); | |
452 | if_usb_submit_rx_urb_fwload(priv); | |
453 | cardp->bootcmdresp = 1; | |
9012b28a | 454 | lbs_deb_usbd(&cardp->udev->dev, |
876c9d3a MT |
455 | "Received valid boot command response\n"); |
456 | return; | |
457 | } | |
458 | if (bootcmdresp.u32magicnumber != BOOT_CMD_MAGIC_NUMBER) { | |
459 | lbs_pr_info( | |
460 | "boot cmd response wrong magic number (0x%x)\n", | |
461 | bootcmdresp.u32magicnumber); | |
462 | } else if (bootcmdresp.u8cmd_tag != BOOT_CMD_FW_BY_USB) { | |
463 | lbs_pr_info( | |
464 | "boot cmd response cmd_tag error (%d)\n", | |
465 | bootcmdresp.u8cmd_tag); | |
466 | } else if (bootcmdresp.u8result != BOOT_CMD_RESP_OK) { | |
467 | lbs_pr_info( | |
468 | "boot cmd response result error (%d)\n", | |
469 | bootcmdresp.u8result); | |
470 | } else { | |
471 | cardp->bootcmdresp = 1; | |
9012b28a | 472 | lbs_deb_usbd(&cardp->udev->dev, |
876c9d3a MT |
473 | "Received valid boot command response\n"); |
474 | } | |
475 | kfree_skb(skb); | |
476 | if_usb_submit_rx_urb_fwload(priv); | |
477 | return; | |
478 | } | |
479 | ||
480 | syncfwheader = kmalloc(sizeof(struct fwsyncheader), GFP_ATOMIC); | |
481 | if (!syncfwheader) { | |
9012b28a | 482 | lbs_deb_usbd(&cardp->udev->dev, "Failure to allocate syncfwheader\n"); |
876c9d3a MT |
483 | kfree_skb(skb); |
484 | return; | |
485 | } | |
486 | ||
487 | memcpy(syncfwheader, skb->data + IPFIELD_ALIGN_OFFSET, | |
488 | sizeof(struct fwsyncheader)); | |
489 | ||
490 | if (!syncfwheader->cmd) { | |
9012b28a HS |
491 | /* |
492 | lbs_deb_usbd(&cardp->udev->dev, | |
876c9d3a | 493 | "FW received Blk with correct CRC\n"); |
9012b28a | 494 | lbs_deb_usbd(&cardp->udev->dev, |
876c9d3a MT |
495 | "FW received Blk seqnum = %d\n", |
496 | syncfwheader->seqnum); | |
9012b28a | 497 | */ |
876c9d3a MT |
498 | cardp->CRC_OK = 1; |
499 | } else { | |
9012b28a | 500 | lbs_deb_usbd(&cardp->udev->dev, |
876c9d3a MT |
501 | "FW received Blk with CRC error\n"); |
502 | cardp->CRC_OK = 0; | |
503 | } | |
504 | ||
505 | kfree_skb(skb); | |
506 | ||
507 | if (cardp->fwfinalblk) { | |
508 | cardp->fwdnldover = 1; | |
509 | goto exit; | |
510 | } | |
511 | ||
512 | if_prog_firmware(priv); | |
513 | ||
514 | if_usb_submit_rx_urb_fwload(priv); | |
515 | exit: | |
516 | kfree(syncfwheader); | |
517 | ||
518 | return; | |
519 | ||
520 | } | |
521 | ||
522 | #define MRVDRV_MIN_PKT_LEN 30 | |
523 | ||
524 | static inline void process_cmdtypedata(int recvlength, struct sk_buff *skb, | |
525 | struct usb_card_rec *cardp, | |
526 | wlan_private *priv) | |
527 | { | |
528 | if (recvlength > MRVDRV_ETH_RX_PACKET_BUFFER_SIZE + | |
529 | MESSAGE_HEADER_LEN || recvlength < MRVDRV_MIN_PKT_LEN) { | |
9012b28a | 530 | lbs_deb_usbd(&cardp->udev->dev, |
876c9d3a MT |
531 | "Packet length is Invalid\n"); |
532 | kfree_skb(skb); | |
533 | return; | |
534 | } | |
535 | ||
536 | skb_reserve(skb, IPFIELD_ALIGN_OFFSET); | |
537 | skb_put(skb, recvlength); | |
538 | skb_pull(skb, MESSAGE_HEADER_LEN); | |
539 | libertas_process_rxed_packet(priv, skb); | |
540 | priv->wlan_dev.upld_len = (recvlength - MESSAGE_HEADER_LEN); | |
541 | } | |
542 | ||
543 | static inline void process_cmdrequest(int recvlength, u8 *recvbuff, | |
544 | struct sk_buff *skb, | |
545 | struct usb_card_rec *cardp, | |
546 | wlan_private *priv) | |
547 | { | |
548 | u8 *cmdbuf; | |
549 | if (recvlength > MRVDRV_SIZE_OF_CMD_BUFFER) { | |
9012b28a | 550 | lbs_deb_usbd(&cardp->udev->dev, |
876c9d3a MT |
551 | "The receive buffer is too large\n"); |
552 | kfree_skb(skb); | |
553 | return; | |
554 | } | |
555 | ||
556 | if (!in_interrupt()) | |
557 | BUG(); | |
558 | ||
559 | spin_lock(&priv->adapter->driver_lock); | |
560 | /* take care of cur_cmd = NULL case by reading the | |
561 | * data to clear the interrupt */ | |
562 | if (!priv->adapter->cur_cmd) { | |
563 | cmdbuf = priv->wlan_dev.upld_buf; | |
564 | priv->adapter->hisregcpy &= ~his_cmdupldrdy; | |
565 | } else | |
566 | cmdbuf = priv->adapter->cur_cmd->bufvirtualaddr; | |
567 | ||
568 | cardp->usb_int_cause |= his_cmdupldrdy; | |
569 | priv->wlan_dev.upld_len = (recvlength - MESSAGE_HEADER_LEN); | |
570 | memcpy(cmdbuf, recvbuff + MESSAGE_HEADER_LEN, | |
571 | priv->wlan_dev.upld_len); | |
572 | ||
573 | kfree_skb(skb); | |
574 | libertas_interrupt(priv->wlan_dev.netdev); | |
575 | spin_unlock(&priv->adapter->driver_lock); | |
576 | ||
9012b28a | 577 | lbs_deb_usbd(&cardp->udev->dev, |
876c9d3a MT |
578 | "Wake up main thread to handle cmd response\n"); |
579 | ||
580 | return; | |
581 | } | |
582 | ||
583 | /** | |
584 | * @brief This function reads of the packet into the upload buff, | |
585 | * wake up the main thread and initialise the Rx callack. | |
586 | * | |
587 | * @param urb pointer to struct urb | |
588 | * @return N/A | |
589 | */ | |
590 | static void if_usb_receive(struct urb *urb) | |
591 | { | |
592 | struct read_cb_info *rinfo = (struct read_cb_info *)urb->context; | |
593 | wlan_private *priv = rinfo->priv; | |
594 | struct sk_buff *skb = rinfo->skb; | |
595 | struct usb_card_rec *cardp = (struct usb_card_rec *)priv->wlan_dev.card; | |
596 | ||
597 | int recvlength = urb->actual_length; | |
598 | u8 *recvbuff = NULL; | |
599 | u32 recvtype; | |
600 | ||
9012b28a | 601 | lbs_deb_enter(LBS_DEB_USB); |
876c9d3a MT |
602 | |
603 | if (recvlength) { | |
604 | if (urb->status) { | |
9012b28a | 605 | lbs_deb_usbd(&cardp->udev->dev, |
876c9d3a MT |
606 | "URB status is failed\n"); |
607 | kfree_skb(skb); | |
608 | goto setup_for_next; | |
609 | } | |
610 | ||
611 | recvbuff = skb->data + IPFIELD_ALIGN_OFFSET; | |
612 | memcpy(&recvtype, recvbuff, sizeof(u32)); | |
9012b28a | 613 | lbs_deb_usbd(&cardp->udev->dev, |
876c9d3a | 614 | "Recv length = 0x%x\n", recvlength); |
9012b28a | 615 | lbs_deb_usbd(&cardp->udev->dev, |
876c9d3a MT |
616 | "Receive type = 0x%X\n", recvtype); |
617 | recvtype = le32_to_cpu(recvtype); | |
9012b28a | 618 | lbs_deb_usbd(&cardp->udev->dev, |
876c9d3a MT |
619 | "Receive type after = 0x%X\n", recvtype); |
620 | } else if (urb->status) | |
621 | goto rx_exit; | |
622 | ||
623 | ||
624 | switch (recvtype) { | |
625 | case CMD_TYPE_DATA: | |
626 | process_cmdtypedata(recvlength, skb, cardp, priv); | |
627 | break; | |
628 | ||
629 | case CMD_TYPE_REQUEST: | |
630 | process_cmdrequest(recvlength, recvbuff, skb, cardp, priv); | |
631 | break; | |
632 | ||
633 | case CMD_TYPE_INDICATION: | |
634 | /* Event cause handling */ | |
635 | spin_lock(&priv->adapter->driver_lock); | |
636 | cardp->usb_event_cause = *(u32 *) (recvbuff + MESSAGE_HEADER_LEN); | |
9012b28a | 637 | lbs_deb_usbd(&cardp->udev->dev,"**EVENT** 0x%X\n", |
876c9d3a MT |
638 | cardp->usb_event_cause); |
639 | if (cardp->usb_event_cause & 0xffff0000) { | |
640 | libertas_send_tx_feedback(priv); | |
12a4d265 | 641 | spin_unlock(&priv->adapter->driver_lock); |
876c9d3a MT |
642 | break; |
643 | } | |
644 | cardp->usb_event_cause = le32_to_cpu(cardp->usb_event_cause) << 3; | |
645 | cardp->usb_int_cause |= his_cardevent; | |
646 | kfree_skb(skb); | |
647 | libertas_interrupt(priv->wlan_dev.netdev); | |
648 | spin_unlock(&priv->adapter->driver_lock); | |
649 | goto rx_exit; | |
650 | default: | |
651 | kfree_skb(skb); | |
652 | break; | |
653 | } | |
654 | ||
655 | setup_for_next: | |
656 | if_usb_submit_rx_urb(priv); | |
657 | rx_exit: | |
9012b28a | 658 | lbs_deb_leave(LBS_DEB_USB); |
876c9d3a MT |
659 | } |
660 | ||
661 | /** | |
662 | * @brief This function downloads data to FW | |
663 | * @param priv pointer to wlan_private structure | |
664 | * @param type type of data | |
665 | * @param buf pointer to data buffer | |
666 | * @param len number of bytes | |
667 | * @return 0 or -1 | |
668 | */ | |
669 | int libertas_sbi_host_to_card(wlan_private * priv, u8 type, u8 * payload, u16 nb) | |
670 | { | |
671 | int ret = -1; | |
672 | u32 tmp; | |
673 | struct usb_card_rec *cardp = (struct usb_card_rec *)priv->wlan_dev.card; | |
674 | ||
9012b28a HS |
675 | lbs_deb_usbd(&cardp->udev->dev,"*** type = %u\n", type); |
676 | lbs_deb_usbd(&cardp->udev->dev,"size after = %d\n", nb); | |
876c9d3a MT |
677 | |
678 | if (type == MVMS_CMD) { | |
679 | tmp = cpu_to_le32(CMD_TYPE_REQUEST); | |
680 | priv->wlan_dev.dnld_sent = DNLD_CMD_SENT; | |
681 | memcpy(cardp->bulk_out_buffer, (u8 *) & tmp, | |
682 | MESSAGE_HEADER_LEN); | |
683 | ||
684 | } else { | |
685 | tmp = cpu_to_le32(CMD_TYPE_DATA); | |
686 | priv->wlan_dev.dnld_sent = DNLD_DATA_SENT; | |
687 | memcpy(cardp->bulk_out_buffer, (u8 *) & tmp, | |
688 | MESSAGE_HEADER_LEN); | |
689 | } | |
690 | ||
691 | memcpy((cardp->bulk_out_buffer + MESSAGE_HEADER_LEN), payload, nb); | |
692 | ||
693 | ret = | |
694 | usb_tx_block(priv, cardp->bulk_out_buffer, nb + MESSAGE_HEADER_LEN); | |
695 | ||
696 | return ret; | |
697 | } | |
698 | ||
699 | /* called with adapter->driver_lock held */ | |
700 | int libertas_sbi_get_int_status(wlan_private * priv, u8 * ireg) | |
701 | { | |
702 | struct usb_card_rec *cardp = priv->wlan_dev.card; | |
703 | ||
704 | *ireg = cardp->usb_int_cause; | |
705 | cardp->usb_int_cause = 0; | |
706 | ||
9012b28a | 707 | lbs_deb_usbd(&cardp->udev->dev,"Int cause is 0x%X\n", *ireg); |
876c9d3a MT |
708 | |
709 | return 0; | |
710 | } | |
711 | ||
712 | int libertas_sbi_read_event_cause(wlan_private * priv) | |
713 | { | |
714 | struct usb_card_rec *cardp = priv->wlan_dev.card; | |
715 | priv->adapter->eventcause = cardp->usb_event_cause; | |
716 | /* Re-submit rx urb here to avoid event lost issue */ | |
717 | if_usb_submit_rx_urb(priv); | |
718 | return 0; | |
719 | } | |
720 | ||
721 | int reset_device(wlan_private *priv) | |
722 | { | |
723 | int ret; | |
724 | ||
725 | ret = libertas_prepare_and_send_command(priv, cmd_802_11_reset, | |
726 | cmd_act_halt, 0, 0, NULL); | |
727 | msleep_interruptible(10); | |
728 | ||
729 | return ret; | |
730 | } | |
731 | ||
732 | int libertas_sbi_unregister_dev(wlan_private * priv) | |
733 | { | |
734 | int ret = 0; | |
735 | ||
736 | /* Need to send a Reset command to device before USB resources freed | |
737 | * and wlan_remove_card() called, then device can handle FW download | |
738 | * again. | |
739 | */ | |
740 | if (priv) | |
741 | reset_device(priv); | |
742 | ||
743 | return ret; | |
744 | } | |
745 | ||
746 | ||
747 | /** | |
748 | * @brief This function register usb device and initialize parameter | |
749 | * @param priv pointer to wlan_private | |
750 | * @return 0 or -1 | |
751 | */ | |
752 | int libertas_sbi_register_dev(wlan_private * priv) | |
753 | { | |
876c9d3a | 754 | struct usb_card_rec *cardp = (struct usb_card_rec *)priv->wlan_dev.card; |
9012b28a HS |
755 | |
756 | lbs_deb_enter(LBS_DEB_USB); | |
876c9d3a MT |
757 | |
758 | cardp->priv = priv; | |
759 | cardp->eth_dev = priv->wlan_dev.netdev; | |
760 | priv->hotplug_device = &(cardp->udev->dev); | |
761 | ||
762 | SET_NETDEV_DEV(cardp->eth_dev, &(cardp->udev->dev)); | |
763 | ||
9012b28a | 764 | lbs_deb_usbd(&cardp->udev->dev, "udev pointer is at %p\n", |
876c9d3a MT |
765 | cardp->udev); |
766 | ||
9012b28a | 767 | lbs_deb_leave(LBS_DEB_USB); |
876c9d3a MT |
768 | return 0; |
769 | } | |
770 | ||
771 | ||
772 | ||
773 | int libertas_sbi_prog_firmware(wlan_private * priv) | |
774 | { | |
775 | struct usb_card_rec *cardp = priv->wlan_dev.card; | |
776 | int i = 0; | |
777 | static int reset_count = 10; | |
9012b28a | 778 | int ret = 0; |
876c9d3a | 779 | |
9012b28a | 780 | lbs_deb_enter(LBS_DEB_USB); |
876c9d3a MT |
781 | |
782 | cardp->rinfo.priv = priv; | |
783 | ||
784 | restart: | |
785 | if (if_usb_submit_rx_urb_fwload(priv) < 0) { | |
9012b28a HS |
786 | lbs_deb_usbd(&cardp->udev->dev, "URB submission is failed\n"); |
787 | ret = -1; | |
788 | goto done; | |
876c9d3a MT |
789 | } |
790 | ||
876c9d3a MT |
791 | cardp->bootcmdresp = 0; |
792 | do { | |
793 | int j = 0; | |
794 | i++; | |
795 | /* Issue Boot command = 1, Boot from Download-FW */ | |
796 | if_usb_issue_boot_command(priv, BOOT_CMD_FW_BY_USB); | |
797 | /* wait for command response */ | |
798 | do { | |
799 | j++; | |
800 | msleep_interruptible(100); | |
801 | } while (cardp->bootcmdresp == 0 && j < 10); | |
802 | } while (cardp->bootcmdresp == 0 && i < 5); | |
803 | ||
804 | if (cardp->bootcmdresp == 0) { | |
805 | if (--reset_count >= 0) { | |
806 | libertas_do_reset(priv); | |
807 | goto restart; | |
808 | } | |
809 | return -1; | |
810 | } | |
876c9d3a MT |
811 | |
812 | i = 0; | |
813 | priv->adapter->fw_ready = 0; | |
814 | ||
815 | cardp->totalbytes = 0; | |
816 | cardp->fwlastblksent = 0; | |
817 | cardp->CRC_OK = 1; | |
818 | cardp->fwdnldover = 0; | |
819 | cardp->fwseqnum = -1; | |
820 | cardp->totalbytes = 0; | |
821 | cardp->fwfinalblk = 0; | |
822 | ||
823 | if_prog_firmware(priv); | |
824 | ||
825 | do { | |
9012b28a | 826 | lbs_deb_usbd(&cardp->udev->dev,"Wlan sched timeout\n"); |
876c9d3a MT |
827 | i++; |
828 | msleep_interruptible(100); | |
829 | if (priv->adapter->surpriseremoved || i >= 20) | |
830 | break; | |
831 | } while (!cardp->fwdnldover); | |
832 | ||
833 | if (!cardp->fwdnldover) { | |
834 | lbs_pr_info("failed to load fw, resetting device!\n"); | |
835 | if (--reset_count >= 0) { | |
836 | libertas_do_reset(priv); | |
837 | goto restart; | |
838 | } | |
839 | ||
840 | lbs_pr_info("FW download failure, time = %d ms\n", i * 100); | |
9012b28a HS |
841 | ret = -1; |
842 | goto done; | |
876c9d3a MT |
843 | } |
844 | ||
845 | if_usb_submit_rx_urb(priv); | |
846 | ||
847 | /* Delay 200 ms to waiting for the FW ready */ | |
848 | msleep_interruptible(200); | |
849 | ||
850 | priv->adapter->fw_ready = 1; | |
851 | ||
9012b28a HS |
852 | done: |
853 | lbs_deb_leave_args(LBS_DEB_USB, "ret %d", ret); | |
854 | return ret; | |
876c9d3a MT |
855 | } |
856 | ||
876c9d3a MT |
857 | #ifdef CONFIG_PM |
858 | static int if_usb_suspend(struct usb_interface *intf, pm_message_t message) | |
859 | { | |
860 | struct usb_card_rec *cardp = usb_get_intfdata(intf); | |
861 | wlan_private *priv = cardp->priv; | |
862 | ||
9012b28a | 863 | lbs_deb_enter(LBS_DEB_USB); |
876c9d3a MT |
864 | |
865 | if (priv->adapter->psstate != PS_STATE_FULL_POWER) | |
866 | return -1; | |
867 | ||
868 | netif_device_detach(cardp->eth_dev); | |
869 | ||
870 | /* Unlink tx & rx urb */ | |
871 | usb_kill_urb(cardp->tx_urb); | |
872 | usb_kill_urb(cardp->rx_urb); | |
873 | ||
874 | cardp->rx_urb_recall = 1; | |
875 | ||
9012b28a | 876 | lbs_deb_leave(LBS_DEB_USB); |
876c9d3a MT |
877 | return 0; |
878 | } | |
879 | ||
880 | static int if_usb_resume(struct usb_interface *intf) | |
881 | { | |
882 | struct usb_card_rec *cardp = usb_get_intfdata(intf); | |
883 | ||
9012b28a | 884 | lbs_deb_enter(LBS_DEB_USB); |
876c9d3a MT |
885 | |
886 | cardp->rx_urb_recall = 0; | |
887 | ||
888 | if_usb_submit_rx_urb(cardp->priv); | |
889 | ||
890 | netif_device_attach(cardp->eth_dev); | |
891 | ||
9012b28a | 892 | lbs_deb_leave(LBS_DEB_USB); |
876c9d3a MT |
893 | return 0; |
894 | } | |
895 | #else | |
896 | #define if_usb_suspend NULL | |
897 | #define if_usb_resume NULL | |
898 | #endif | |
899 | ||
900 | static struct usb_driver if_usb_driver = { | |
901 | /* driver name */ | |
902 | .name = usbdriver_name, | |
903 | /* probe function name */ | |
904 | .probe = if_usb_probe, | |
905 | /* disconnect function name */ | |
906 | .disconnect = if_usb_disconnect, | |
907 | /* device signature table */ | |
908 | .id_table = if_usb_table, | |
909 | .suspend = if_usb_suspend, | |
910 | .resume = if_usb_resume, | |
911 | }; | |
912 | ||
913 | /** | |
914 | * @brief This function registers driver. | |
915 | * @param add pointer to add_card callback function | |
916 | * @param remove pointer to remove card callback function | |
917 | * @param arg pointer to call back function parameter | |
918 | * @return dummy success variable | |
919 | */ | |
920 | int libertas_sbi_register(void) | |
921 | { | |
922 | /* | |
923 | * API registers the Marvell USB driver | |
924 | * to the USB system | |
925 | */ | |
926 | usb_register(&if_usb_driver); | |
927 | ||
928 | /* Return success to wlan layer */ | |
929 | return 0; | |
930 | } | |
931 | ||
932 | /** | |
933 | * @brief This function removes usb driver. | |
934 | * @return N/A | |
935 | */ | |
936 | void libertas_sbi_unregister(void) | |
937 | { | |
938 | /* API unregisters the driver from USB subsystem */ | |
939 | usb_deregister(&if_usb_driver); | |
940 | return; | |
941 | } |