Commit | Line | Data |
---|---|---|
876c9d3a MT |
1 | /** |
2 | * This file contains functions used in USB interface module. | |
3 | */ | |
4 | #include <linux/delay.h> | |
084708b6 | 5 | #include <linux/moduleparam.h> |
876c9d3a MT |
6 | #include <linux/firmware.h> |
7 | #include <linux/netdevice.h> | |
435a1acb | 8 | #include <linux/list.h> |
876c9d3a MT |
9 | #include <linux/usb.h> |
10 | ||
ec3eef28 HS |
11 | #define DRV_NAME "usb8xxx" |
12 | ||
876c9d3a | 13 | #include "host.h" |
876c9d3a MT |
14 | #include "decl.h" |
15 | #include "defs.h" | |
16 | #include "dev.h" | |
17 | #include "if_usb.h" | |
18 | ||
19 | #define MESSAGE_HEADER_LEN 4 | |
20 | ||
21 | static const char usbdriver_name[] = "usb8xxx"; | |
084708b6 HS |
22 | static u8 *default_fw_name = "usb8388.bin"; |
23 | ||
24 | char *libertas_fw_name = NULL; | |
25 | module_param_named(fw_name, libertas_fw_name, charp, 0644); | |
26 | ||
435a1acb HS |
27 | /* |
28 | * We need to send a RESET command to all USB devices before | |
29 | * we tear down the USB connection. Otherwise we would not | |
30 | * be able to re-init device the device if the module gets | |
31 | * loaded again. This is a list of all initialized USB devices, | |
32 | * for the reset code see if_usb_reset_device() | |
33 | */ | |
34 | static LIST_HEAD(usb_devices); | |
3874d0fe | 35 | |
876c9d3a MT |
36 | static struct usb_device_id if_usb_table[] = { |
37 | /* Enter the device signature inside */ | |
66fcc559 HS |
38 | { USB_DEVICE(0x1286, 0x2001) }, |
39 | { USB_DEVICE(0x05a3, 0x8388) }, | |
876c9d3a MT |
40 | {} /* Terminating entry */ |
41 | }; | |
42 | ||
43 | MODULE_DEVICE_TABLE(usb, if_usb_table); | |
44 | ||
45 | static void if_usb_receive(struct urb *urb); | |
46 | static void if_usb_receive_fwload(struct urb *urb); | |
435a1acb | 47 | static int if_usb_reset_device(wlan_private *priv); |
208fdd2f HS |
48 | static int if_usb_register_dev(wlan_private * priv); |
49 | static int if_usb_unregister_dev(wlan_private *); | |
50 | static int if_usb_prog_firmware(wlan_private *); | |
51 | static int if_usb_host_to_card(wlan_private * priv, u8 type, u8 * payload, u16 nb); | |
52 | static int if_usb_get_int_status(wlan_private * priv, u8 *); | |
53 | static int if_usb_read_event_cause(wlan_private *); | |
876c9d3a MT |
54 | |
55 | /** | |
56 | * @brief call back function to handle the status of the URB | |
57 | * @param urb pointer to urb structure | |
58 | * @return N/A | |
59 | */ | |
60 | static void if_usb_write_bulk_callback(struct urb *urb) | |
61 | { | |
62 | wlan_private *priv = (wlan_private *) (urb->context); | |
63 | wlan_adapter *adapter = priv->adapter; | |
64 | struct net_device *dev = priv->wlan_dev.netdev; | |
65 | ||
66 | /* handle the transmission complete validations */ | |
67 | ||
68 | if (urb->status != 0) { | |
69 | /* print the failure status number for debug */ | |
70 | lbs_pr_info("URB in failure status\n"); | |
71 | } else { | |
9012b28a HS |
72 | /* |
73 | lbs_deb_usbd(&urb->dev->dev, "URB status is successfull\n"); | |
74 | lbs_deb_usbd(&urb->dev->dev, "Actual length transmitted %d\n", | |
876c9d3a | 75 | urb->actual_length); |
9012b28a | 76 | */ |
876c9d3a MT |
77 | priv->wlan_dev.dnld_sent = DNLD_RES_RECEIVED; |
78 | /* Wake main thread if commands are pending */ | |
79 | if (!adapter->cur_cmd) | |
80 | wake_up_interruptible(&priv->mainthread.waitq); | |
51d84f50 | 81 | if ((adapter->connect_status == libertas_connected)) { |
876c9d3a | 82 | netif_wake_queue(dev); |
51d84f50 JC |
83 | netif_wake_queue(priv->mesh_dev); |
84 | } | |
876c9d3a MT |
85 | } |
86 | ||
87 | return; | |
88 | } | |
89 | ||
90 | /** | |
91 | * @brief free tx/rx urb, skb and rx buffer | |
92 | * @param cardp pointer usb_card_rec | |
93 | * @return N/A | |
94 | */ | |
95 | void if_usb_free(struct usb_card_rec *cardp) | |
96 | { | |
9012b28a | 97 | lbs_deb_enter(LBS_DEB_USB); |
876c9d3a MT |
98 | |
99 | /* Unlink tx & rx urb */ | |
100 | usb_kill_urb(cardp->tx_urb); | |
101 | usb_kill_urb(cardp->rx_urb); | |
102 | ||
103 | usb_free_urb(cardp->tx_urb); | |
104 | cardp->tx_urb = NULL; | |
105 | ||
106 | usb_free_urb(cardp->rx_urb); | |
107 | cardp->rx_urb = NULL; | |
108 | ||
109 | kfree(cardp->bulk_out_buffer); | |
110 | cardp->bulk_out_buffer = NULL; | |
111 | ||
9012b28a | 112 | lbs_deb_leave(LBS_DEB_USB); |
876c9d3a MT |
113 | } |
114 | ||
115 | /** | |
116 | * @brief sets the configuration values | |
117 | * @param ifnum interface number | |
118 | * @param id pointer to usb_device_id | |
119 | * @return 0 on success, error code on failure | |
120 | */ | |
121 | static int if_usb_probe(struct usb_interface *intf, | |
122 | const struct usb_device_id *id) | |
123 | { | |
124 | struct usb_device *udev; | |
125 | struct usb_host_interface *iface_desc; | |
126 | struct usb_endpoint_descriptor *endpoint; | |
78523daa | 127 | wlan_private *priv; |
435a1acb | 128 | struct usb_card_rec *cardp; |
876c9d3a MT |
129 | int i; |
130 | ||
131 | udev = interface_to_usbdev(intf); | |
132 | ||
435a1acb HS |
133 | cardp = kzalloc(sizeof(struct usb_card_rec), GFP_KERNEL); |
134 | if (!cardp) { | |
876c9d3a MT |
135 | lbs_pr_err("Out of memory allocating private data.\n"); |
136 | goto error; | |
137 | } | |
138 | ||
435a1acb | 139 | cardp->udev = udev; |
876c9d3a MT |
140 | iface_desc = intf->cur_altsetting; |
141 | ||
9012b28a | 142 | lbs_deb_usbd(&udev->dev, "bcdUSB = 0x%X bDeviceClass = 0x%X" |
876c9d3a MT |
143 | " bDeviceSubClass = 0x%X, bDeviceProtocol = 0x%X\n", |
144 | udev->descriptor.bcdUSB, | |
145 | udev->descriptor.bDeviceClass, | |
146 | udev->descriptor.bDeviceSubClass, | |
147 | udev->descriptor.bDeviceProtocol); | |
148 | ||
149 | for (i = 0; i < iface_desc->desc.bNumEndpoints; ++i) { | |
150 | endpoint = &iface_desc->endpoint[i].desc; | |
151 | if ((endpoint->bEndpointAddress & USB_ENDPOINT_DIR_MASK) | |
152 | && ((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) == | |
153 | USB_ENDPOINT_XFER_BULK)) { | |
154 | /* we found a bulk in endpoint */ | |
9012b28a | 155 | lbs_deb_usbd(&udev->dev, "Bulk in size is %d\n", |
876c9d3a MT |
156 | endpoint->wMaxPacketSize); |
157 | if (! | |
435a1acb | 158 | (cardp->rx_urb = |
876c9d3a | 159 | usb_alloc_urb(0, GFP_KERNEL))) { |
9012b28a | 160 | lbs_deb_usbd(&udev->dev, |
876c9d3a MT |
161 | "Rx URB allocation failed\n"); |
162 | goto dealloc; | |
163 | } | |
435a1acb | 164 | cardp->rx_urb_recall = 0; |
876c9d3a | 165 | |
435a1acb | 166 | cardp->bulk_in_size = |
876c9d3a | 167 | endpoint->wMaxPacketSize; |
435a1acb | 168 | cardp->bulk_in_endpointAddr = |
876c9d3a MT |
169 | (endpoint-> |
170 | bEndpointAddress & USB_ENDPOINT_NUMBER_MASK); | |
9012b28a | 171 | lbs_deb_usbd(&udev->dev, "in_endpoint = %d\n", |
876c9d3a MT |
172 | endpoint->bEndpointAddress); |
173 | } | |
174 | ||
175 | if (((endpoint-> | |
176 | bEndpointAddress & USB_ENDPOINT_DIR_MASK) == | |
177 | USB_DIR_OUT) | |
178 | && ((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) == | |
179 | USB_ENDPOINT_XFER_BULK)) { | |
180 | /* We found bulk out endpoint */ | |
181 | if (! | |
435a1acb | 182 | (cardp->tx_urb = |
876c9d3a | 183 | usb_alloc_urb(0, GFP_KERNEL))) { |
9012b28a | 184 | lbs_deb_usbd(&udev->dev, |
876c9d3a MT |
185 | "Tx URB allocation failed\n"); |
186 | goto dealloc; | |
187 | } | |
188 | ||
435a1acb | 189 | cardp->bulk_out_size = |
876c9d3a | 190 | endpoint->wMaxPacketSize; |
9012b28a | 191 | lbs_deb_usbd(&udev->dev, |
876c9d3a MT |
192 | "Bulk out size is %d\n", |
193 | endpoint->wMaxPacketSize); | |
435a1acb | 194 | cardp->bulk_out_endpointAddr = |
876c9d3a | 195 | endpoint->bEndpointAddress; |
9012b28a | 196 | lbs_deb_usbd(&udev->dev, "out_endpoint = %d\n", |
876c9d3a | 197 | endpoint->bEndpointAddress); |
435a1acb | 198 | cardp->bulk_out_buffer = |
876c9d3a MT |
199 | kmalloc(MRVDRV_ETH_TX_PACKET_BUFFER_SIZE, |
200 | GFP_KERNEL); | |
201 | ||
435a1acb | 202 | if (!cardp->bulk_out_buffer) { |
9012b28a | 203 | lbs_deb_usbd(&udev->dev, |
876c9d3a MT |
204 | "Could not allocate buffer\n"); |
205 | goto dealloc; | |
206 | } | |
207 | } | |
208 | } | |
209 | ||
210 | ||
084708b6 | 211 | /* At this point libertas_add_card() will be called. Don't worry |
876c9d3a | 212 | * about keeping pwlanpriv around since it will be set on our |
208fdd2f | 213 | * usb device data in -> add() -> hw_register_dev() -> if_usb_register_dev. |
876c9d3a | 214 | */ |
435a1acb | 215 | if (!(priv = libertas_add_card(cardp))) |
78523daa | 216 | goto dealloc; |
3874d0fe | 217 | |
084708b6 | 218 | if (libertas_add_mesh(priv)) |
6a812157 | 219 | goto err_add_mesh; |
51d84f50 | 220 | |
208fdd2f HS |
221 | priv->hw_register_dev = if_usb_register_dev; |
222 | priv->hw_unregister_dev = if_usb_unregister_dev; | |
223 | priv->hw_prog_firmware = if_usb_prog_firmware; | |
224 | priv->hw_host_to_card = if_usb_host_to_card; | |
225 | priv->hw_get_int_status = if_usb_get_int_status; | |
226 | priv->hw_read_event_cause = if_usb_read_event_cause; | |
227 | ||
084708b6 | 228 | if (libertas_activate_card(priv, libertas_fw_name)) |
6a812157 | 229 | goto err_activate_card; |
32a74b7c | 230 | |
435a1acb | 231 | list_add_tail(&cardp->list, &usb_devices); |
3874d0fe | 232 | |
876c9d3a | 233 | usb_get_dev(udev); |
435a1acb | 234 | usb_set_intfdata(intf, cardp); |
876c9d3a | 235 | |
876c9d3a MT |
236 | return 0; |
237 | ||
6a812157 MT |
238 | err_activate_card: |
239 | unregister_netdev(priv->mesh_dev); | |
240 | free_netdev(priv->mesh_dev); | |
241 | err_add_mesh: | |
242 | free_netdev(priv->wlan_dev.netdev); | |
243 | kfree(priv->adapter); | |
876c9d3a | 244 | dealloc: |
435a1acb | 245 | if_usb_free(cardp); |
876c9d3a MT |
246 | |
247 | error: | |
248 | return -ENOMEM; | |
249 | } | |
250 | ||
251 | /** | |
252 | * @brief free resource and cleanup | |
435a1acb | 253 | * @param intf USB interface structure |
876c9d3a MT |
254 | * @return N/A |
255 | */ | |
256 | static void if_usb_disconnect(struct usb_interface *intf) | |
257 | { | |
258 | struct usb_card_rec *cardp = usb_get_intfdata(intf); | |
259 | wlan_private *priv = (wlan_private *) cardp->priv; | |
260 | wlan_adapter *adapter = NULL; | |
261 | ||
262 | adapter = priv->adapter; | |
263 | ||
264 | /* | |
265 | * Update Surprise removed to TRUE | |
266 | */ | |
267 | adapter->surpriseremoved = 1; | |
268 | ||
435a1acb | 269 | list_del(&cardp->list); |
3874d0fe | 270 | |
876c9d3a | 271 | /* card is removed and we can call wlan_remove_card */ |
9012b28a | 272 | lbs_deb_usbd(&cardp->udev->dev, "call remove card\n"); |
084708b6 HS |
273 | libertas_remove_mesh(priv); |
274 | libertas_remove_card(priv); | |
876c9d3a MT |
275 | |
276 | /* Unlink and free urb */ | |
277 | if_usb_free(cardp); | |
278 | ||
279 | usb_set_intfdata(intf, NULL); | |
280 | usb_put_dev(interface_to_usbdev(intf)); | |
281 | ||
282 | return; | |
283 | } | |
284 | ||
285 | /** | |
286 | * @brief This function download FW | |
287 | * @param priv pointer to wlan_private | |
288 | * @return 0 | |
289 | */ | |
290 | static int if_prog_firmware(wlan_private * priv) | |
291 | { | |
292 | struct usb_card_rec *cardp = priv->wlan_dev.card; | |
293 | struct FWData *fwdata; | |
294 | struct fwheader *fwheader; | |
295 | u8 *firmware = priv->firmware->data; | |
296 | ||
297 | fwdata = kmalloc(sizeof(struct FWData), GFP_ATOMIC); | |
298 | ||
299 | if (!fwdata) | |
300 | return -1; | |
301 | ||
302 | fwheader = &fwdata->fwheader; | |
303 | ||
304 | if (!cardp->CRC_OK) { | |
305 | cardp->totalbytes = cardp->fwlastblksent; | |
306 | cardp->fwseqnum = cardp->lastseqnum - 1; | |
307 | } | |
308 | ||
9012b28a HS |
309 | /* |
310 | lbs_deb_usbd(&cardp->udev->dev, "totalbytes = %d\n", | |
876c9d3a | 311 | cardp->totalbytes); |
9012b28a | 312 | */ |
876c9d3a MT |
313 | |
314 | memcpy(fwheader, &firmware[cardp->totalbytes], | |
315 | sizeof(struct fwheader)); | |
316 | ||
317 | cardp->fwlastblksent = cardp->totalbytes; | |
318 | cardp->totalbytes += sizeof(struct fwheader); | |
319 | ||
9012b28a | 320 | /* lbs_deb_usbd(&cardp->udev->dev,"Copy Data\n"); */ |
876c9d3a MT |
321 | memcpy(fwdata->data, &firmware[cardp->totalbytes], |
322 | fwdata->fwheader.datalength); | |
323 | ||
9012b28a HS |
324 | /* |
325 | lbs_deb_usbd(&cardp->udev->dev, | |
876c9d3a | 326 | "Data length = %d\n", fwdata->fwheader.datalength); |
9012b28a | 327 | */ |
876c9d3a MT |
328 | |
329 | cardp->fwseqnum = cardp->fwseqnum + 1; | |
330 | ||
331 | fwdata->seqnum = cardp->fwseqnum; | |
332 | cardp->lastseqnum = fwdata->seqnum; | |
333 | cardp->totalbytes += fwdata->fwheader.datalength; | |
334 | ||
335 | if (fwheader->dnldcmd == FW_HAS_DATA_TO_RECV) { | |
9012b28a HS |
336 | /* |
337 | lbs_deb_usbd(&cardp->udev->dev, "There is data to follow\n"); | |
338 | lbs_deb_usbd(&cardp->udev->dev, | |
876c9d3a MT |
339 | "seqnum = %d totalbytes = %d\n", cardp->fwseqnum, |
340 | cardp->totalbytes); | |
9012b28a | 341 | */ |
876c9d3a MT |
342 | memcpy(cardp->bulk_out_buffer, fwheader, FW_DATA_XMIT_SIZE); |
343 | usb_tx_block(priv, cardp->bulk_out_buffer, FW_DATA_XMIT_SIZE); | |
344 | ||
345 | } else if (fwdata->fwheader.dnldcmd == FW_HAS_LAST_BLOCK) { | |
9012b28a HS |
346 | /* |
347 | lbs_deb_usbd(&cardp->udev->dev, | |
876c9d3a | 348 | "Host has finished FW downloading\n"); |
9012b28a | 349 | lbs_deb_usbd(&cardp->udev->dev, |
876c9d3a | 350 | "Donwloading FW JUMP BLOCK\n"); |
9012b28a | 351 | */ |
876c9d3a MT |
352 | memcpy(cardp->bulk_out_buffer, fwheader, FW_DATA_XMIT_SIZE); |
353 | usb_tx_block(priv, cardp->bulk_out_buffer, FW_DATA_XMIT_SIZE); | |
354 | cardp->fwfinalblk = 1; | |
355 | } | |
356 | ||
9012b28a HS |
357 | /* |
358 | lbs_deb_usbd(&cardp->udev->dev, | |
876c9d3a MT |
359 | "The firmware download is done size is %d\n", |
360 | cardp->totalbytes); | |
9012b28a | 361 | */ |
876c9d3a MT |
362 | |
363 | kfree(fwdata); | |
364 | ||
365 | return 0; | |
366 | } | |
367 | ||
368 | static int libertas_do_reset(wlan_private *priv) | |
369 | { | |
370 | int ret; | |
371 | struct usb_card_rec *cardp = priv->wlan_dev.card; | |
372 | ||
3874d0fe HS |
373 | lbs_deb_enter(LBS_DEB_USB); |
374 | ||
876c9d3a MT |
375 | ret = usb_reset_device(cardp->udev); |
376 | if (!ret) { | |
377 | msleep(10); | |
435a1acb | 378 | if_usb_reset_device(priv); |
876c9d3a MT |
379 | msleep(10); |
380 | } | |
3874d0fe HS |
381 | |
382 | lbs_deb_leave_args(LBS_DEB_USB, "ret %d", ret); | |
383 | ||
876c9d3a MT |
384 | return ret; |
385 | } | |
386 | ||
387 | /** | |
388 | * @brief This function transfer the data to the device. | |
389 | * @param priv pointer to wlan_private | |
390 | * @param payload pointer to payload data | |
391 | * @param nb data length | |
392 | * @return 0 or -1 | |
393 | */ | |
394 | int usb_tx_block(wlan_private * priv, u8 * payload, u16 nb) | |
395 | { | |
396 | /* pointer to card structure */ | |
397 | struct usb_card_rec *cardp = priv->wlan_dev.card; | |
398 | int ret = -1; | |
399 | ||
400 | /* check if device is removed */ | |
401 | if (priv->adapter->surpriseremoved) { | |
9012b28a | 402 | lbs_deb_usbd(&cardp->udev->dev, "Device removed\n"); |
876c9d3a MT |
403 | goto tx_ret; |
404 | } | |
405 | ||
406 | usb_fill_bulk_urb(cardp->tx_urb, cardp->udev, | |
407 | usb_sndbulkpipe(cardp->udev, | |
408 | cardp->bulk_out_endpointAddr), | |
409 | payload, nb, if_usb_write_bulk_callback, priv); | |
410 | ||
411 | cardp->tx_urb->transfer_flags |= URB_ZERO_PACKET; | |
412 | ||
413 | if ((ret = usb_submit_urb(cardp->tx_urb, GFP_ATOMIC))) { | |
414 | /* transfer failed */ | |
9012b28a | 415 | lbs_deb_usbd(&cardp->udev->dev, "usb_submit_urb failed\n"); |
876c9d3a MT |
416 | ret = -1; |
417 | } else { | |
9012b28a | 418 | /* lbs_deb_usbd(&cardp->udev->dev, "usb_submit_urb success\n"); */ |
876c9d3a MT |
419 | ret = 0; |
420 | } | |
421 | ||
422 | tx_ret: | |
423 | return ret; | |
424 | } | |
425 | ||
426 | static int __if_usb_submit_rx_urb(wlan_private * priv, | |
427 | void (*callbackfn) | |
428 | (struct urb *urb)) | |
429 | { | |
430 | struct usb_card_rec *cardp = priv->wlan_dev.card; | |
431 | struct sk_buff *skb; | |
432 | struct read_cb_info *rinfo = &cardp->rinfo; | |
433 | int ret = -1; | |
434 | ||
435 | if (!(skb = dev_alloc_skb(MRVDRV_ETH_RX_PACKET_BUFFER_SIZE))) { | |
436 | lbs_pr_err("No free skb\n"); | |
437 | goto rx_ret; | |
438 | } | |
439 | ||
440 | rinfo->skb = skb; | |
441 | ||
442 | /* Fill the receive configuration URB and initialise the Rx call back */ | |
443 | usb_fill_bulk_urb(cardp->rx_urb, cardp->udev, | |
444 | usb_rcvbulkpipe(cardp->udev, | |
445 | cardp->bulk_in_endpointAddr), | |
4269e2ad | 446 | (void *) (skb->tail + (size_t) IPFIELD_ALIGN_OFFSET), |
876c9d3a MT |
447 | MRVDRV_ETH_RX_PACKET_BUFFER_SIZE, callbackfn, |
448 | rinfo); | |
449 | ||
450 | cardp->rx_urb->transfer_flags |= URB_ZERO_PACKET; | |
451 | ||
9012b28a | 452 | /* lbs_deb_usbd(&cardp->udev->dev, "Pointer for rx_urb %p\n", cardp->rx_urb); */ |
876c9d3a MT |
453 | if ((ret = usb_submit_urb(cardp->rx_urb, GFP_ATOMIC))) { |
454 | /* handle failure conditions */ | |
9012b28a | 455 | lbs_deb_usbd(&cardp->udev->dev, "Submit Rx URB failed\n"); |
876c9d3a MT |
456 | ret = -1; |
457 | } else { | |
9012b28a | 458 | /* lbs_deb_usbd(&cardp->udev->dev, "Submit Rx URB success\n"); */ |
876c9d3a MT |
459 | ret = 0; |
460 | } | |
461 | ||
462 | rx_ret: | |
463 | return ret; | |
464 | } | |
465 | ||
466 | static inline int if_usb_submit_rx_urb_fwload(wlan_private * priv) | |
467 | { | |
468 | return __if_usb_submit_rx_urb(priv, &if_usb_receive_fwload); | |
469 | } | |
470 | ||
471 | static inline int if_usb_submit_rx_urb(wlan_private * priv) | |
472 | { | |
473 | return __if_usb_submit_rx_urb(priv, &if_usb_receive); | |
474 | } | |
475 | ||
476 | static void if_usb_receive_fwload(struct urb *urb) | |
477 | { | |
478 | struct read_cb_info *rinfo = (struct read_cb_info *)urb->context; | |
479 | wlan_private *priv = rinfo->priv; | |
480 | struct sk_buff *skb = rinfo->skb; | |
481 | struct usb_card_rec *cardp = (struct usb_card_rec *)priv->wlan_dev.card; | |
482 | struct fwsyncheader *syncfwheader; | |
483 | struct bootcmdrespStr bootcmdresp; | |
484 | ||
485 | if (urb->status) { | |
9012b28a | 486 | lbs_deb_usbd(&cardp->udev->dev, |
876c9d3a MT |
487 | "URB status is failed during fw load\n"); |
488 | kfree_skb(skb); | |
489 | return; | |
490 | } | |
491 | ||
492 | if (cardp->bootcmdresp == 0) { | |
493 | memcpy (&bootcmdresp, skb->data + IPFIELD_ALIGN_OFFSET, | |
494 | sizeof(bootcmdresp)); | |
495 | if (cardp->udev->descriptor.bcdDevice < 0x3106) { | |
496 | kfree_skb(skb); | |
497 | if_usb_submit_rx_urb_fwload(priv); | |
498 | cardp->bootcmdresp = 1; | |
9012b28a | 499 | lbs_deb_usbd(&cardp->udev->dev, |
876c9d3a MT |
500 | "Received valid boot command response\n"); |
501 | return; | |
502 | } | |
503 | if (bootcmdresp.u32magicnumber != BOOT_CMD_MAGIC_NUMBER) { | |
504 | lbs_pr_info( | |
505 | "boot cmd response wrong magic number (0x%x)\n", | |
506 | bootcmdresp.u32magicnumber); | |
507 | } else if (bootcmdresp.u8cmd_tag != BOOT_CMD_FW_BY_USB) { | |
508 | lbs_pr_info( | |
509 | "boot cmd response cmd_tag error (%d)\n", | |
510 | bootcmdresp.u8cmd_tag); | |
511 | } else if (bootcmdresp.u8result != BOOT_CMD_RESP_OK) { | |
512 | lbs_pr_info( | |
513 | "boot cmd response result error (%d)\n", | |
514 | bootcmdresp.u8result); | |
515 | } else { | |
516 | cardp->bootcmdresp = 1; | |
9012b28a | 517 | lbs_deb_usbd(&cardp->udev->dev, |
876c9d3a MT |
518 | "Received valid boot command response\n"); |
519 | } | |
520 | kfree_skb(skb); | |
521 | if_usb_submit_rx_urb_fwload(priv); | |
522 | return; | |
523 | } | |
524 | ||
525 | syncfwheader = kmalloc(sizeof(struct fwsyncheader), GFP_ATOMIC); | |
526 | if (!syncfwheader) { | |
9012b28a | 527 | lbs_deb_usbd(&cardp->udev->dev, "Failure to allocate syncfwheader\n"); |
876c9d3a MT |
528 | kfree_skb(skb); |
529 | return; | |
530 | } | |
531 | ||
532 | memcpy(syncfwheader, skb->data + IPFIELD_ALIGN_OFFSET, | |
533 | sizeof(struct fwsyncheader)); | |
534 | ||
535 | if (!syncfwheader->cmd) { | |
9012b28a HS |
536 | /* |
537 | lbs_deb_usbd(&cardp->udev->dev, | |
876c9d3a | 538 | "FW received Blk with correct CRC\n"); |
9012b28a | 539 | lbs_deb_usbd(&cardp->udev->dev, |
876c9d3a MT |
540 | "FW received Blk seqnum = %d\n", |
541 | syncfwheader->seqnum); | |
9012b28a | 542 | */ |
876c9d3a MT |
543 | cardp->CRC_OK = 1; |
544 | } else { | |
9012b28a | 545 | lbs_deb_usbd(&cardp->udev->dev, |
876c9d3a MT |
546 | "FW received Blk with CRC error\n"); |
547 | cardp->CRC_OK = 0; | |
548 | } | |
549 | ||
550 | kfree_skb(skb); | |
551 | ||
552 | if (cardp->fwfinalblk) { | |
553 | cardp->fwdnldover = 1; | |
554 | goto exit; | |
555 | } | |
556 | ||
557 | if_prog_firmware(priv); | |
558 | ||
559 | if_usb_submit_rx_urb_fwload(priv); | |
560 | exit: | |
561 | kfree(syncfwheader); | |
562 | ||
563 | return; | |
564 | ||
565 | } | |
566 | ||
567 | #define MRVDRV_MIN_PKT_LEN 30 | |
568 | ||
569 | static inline void process_cmdtypedata(int recvlength, struct sk_buff *skb, | |
570 | struct usb_card_rec *cardp, | |
571 | wlan_private *priv) | |
572 | { | |
573 | if (recvlength > MRVDRV_ETH_RX_PACKET_BUFFER_SIZE + | |
574 | MESSAGE_HEADER_LEN || recvlength < MRVDRV_MIN_PKT_LEN) { | |
9012b28a | 575 | lbs_deb_usbd(&cardp->udev->dev, |
876c9d3a MT |
576 | "Packet length is Invalid\n"); |
577 | kfree_skb(skb); | |
578 | return; | |
579 | } | |
580 | ||
581 | skb_reserve(skb, IPFIELD_ALIGN_OFFSET); | |
582 | skb_put(skb, recvlength); | |
583 | skb_pull(skb, MESSAGE_HEADER_LEN); | |
584 | libertas_process_rxed_packet(priv, skb); | |
585 | priv->wlan_dev.upld_len = (recvlength - MESSAGE_HEADER_LEN); | |
586 | } | |
587 | ||
588 | static inline void process_cmdrequest(int recvlength, u8 *recvbuff, | |
589 | struct sk_buff *skb, | |
590 | struct usb_card_rec *cardp, | |
591 | wlan_private *priv) | |
592 | { | |
593 | u8 *cmdbuf; | |
594 | if (recvlength > MRVDRV_SIZE_OF_CMD_BUFFER) { | |
9012b28a | 595 | lbs_deb_usbd(&cardp->udev->dev, |
876c9d3a MT |
596 | "The receive buffer is too large\n"); |
597 | kfree_skb(skb); | |
598 | return; | |
599 | } | |
600 | ||
601 | if (!in_interrupt()) | |
602 | BUG(); | |
603 | ||
604 | spin_lock(&priv->adapter->driver_lock); | |
605 | /* take care of cur_cmd = NULL case by reading the | |
606 | * data to clear the interrupt */ | |
607 | if (!priv->adapter->cur_cmd) { | |
608 | cmdbuf = priv->wlan_dev.upld_buf; | |
609 | priv->adapter->hisregcpy &= ~his_cmdupldrdy; | |
610 | } else | |
611 | cmdbuf = priv->adapter->cur_cmd->bufvirtualaddr; | |
612 | ||
613 | cardp->usb_int_cause |= his_cmdupldrdy; | |
614 | priv->wlan_dev.upld_len = (recvlength - MESSAGE_HEADER_LEN); | |
615 | memcpy(cmdbuf, recvbuff + MESSAGE_HEADER_LEN, | |
616 | priv->wlan_dev.upld_len); | |
617 | ||
618 | kfree_skb(skb); | |
619 | libertas_interrupt(priv->wlan_dev.netdev); | |
620 | spin_unlock(&priv->adapter->driver_lock); | |
621 | ||
9012b28a | 622 | lbs_deb_usbd(&cardp->udev->dev, |
876c9d3a MT |
623 | "Wake up main thread to handle cmd response\n"); |
624 | ||
625 | return; | |
626 | } | |
627 | ||
628 | /** | |
629 | * @brief This function reads of the packet into the upload buff, | |
630 | * wake up the main thread and initialise the Rx callack. | |
631 | * | |
632 | * @param urb pointer to struct urb | |
633 | * @return N/A | |
634 | */ | |
635 | static void if_usb_receive(struct urb *urb) | |
636 | { | |
637 | struct read_cb_info *rinfo = (struct read_cb_info *)urb->context; | |
638 | wlan_private *priv = rinfo->priv; | |
639 | struct sk_buff *skb = rinfo->skb; | |
640 | struct usb_card_rec *cardp = (struct usb_card_rec *)priv->wlan_dev.card; | |
641 | ||
642 | int recvlength = urb->actual_length; | |
643 | u8 *recvbuff = NULL; | |
644 | u32 recvtype; | |
645 | ||
9012b28a | 646 | lbs_deb_enter(LBS_DEB_USB); |
876c9d3a MT |
647 | |
648 | if (recvlength) { | |
649 | if (urb->status) { | |
9012b28a | 650 | lbs_deb_usbd(&cardp->udev->dev, |
876c9d3a MT |
651 | "URB status is failed\n"); |
652 | kfree_skb(skb); | |
653 | goto setup_for_next; | |
654 | } | |
655 | ||
656 | recvbuff = skb->data + IPFIELD_ALIGN_OFFSET; | |
657 | memcpy(&recvtype, recvbuff, sizeof(u32)); | |
9012b28a | 658 | lbs_deb_usbd(&cardp->udev->dev, |
876c9d3a | 659 | "Recv length = 0x%x\n", recvlength); |
9012b28a | 660 | lbs_deb_usbd(&cardp->udev->dev, |
876c9d3a MT |
661 | "Receive type = 0x%X\n", recvtype); |
662 | recvtype = le32_to_cpu(recvtype); | |
9012b28a | 663 | lbs_deb_usbd(&cardp->udev->dev, |
876c9d3a MT |
664 | "Receive type after = 0x%X\n", recvtype); |
665 | } else if (urb->status) | |
666 | goto rx_exit; | |
667 | ||
668 | ||
669 | switch (recvtype) { | |
670 | case CMD_TYPE_DATA: | |
671 | process_cmdtypedata(recvlength, skb, cardp, priv); | |
672 | break; | |
673 | ||
674 | case CMD_TYPE_REQUEST: | |
675 | process_cmdrequest(recvlength, recvbuff, skb, cardp, priv); | |
676 | break; | |
677 | ||
678 | case CMD_TYPE_INDICATION: | |
679 | /* Event cause handling */ | |
680 | spin_lock(&priv->adapter->driver_lock); | |
681 | cardp->usb_event_cause = *(u32 *) (recvbuff + MESSAGE_HEADER_LEN); | |
9012b28a | 682 | lbs_deb_usbd(&cardp->udev->dev,"**EVENT** 0x%X\n", |
876c9d3a MT |
683 | cardp->usb_event_cause); |
684 | if (cardp->usb_event_cause & 0xffff0000) { | |
685 | libertas_send_tx_feedback(priv); | |
12a4d265 | 686 | spin_unlock(&priv->adapter->driver_lock); |
876c9d3a MT |
687 | break; |
688 | } | |
689 | cardp->usb_event_cause = le32_to_cpu(cardp->usb_event_cause) << 3; | |
690 | cardp->usb_int_cause |= his_cardevent; | |
691 | kfree_skb(skb); | |
692 | libertas_interrupt(priv->wlan_dev.netdev); | |
693 | spin_unlock(&priv->adapter->driver_lock); | |
694 | goto rx_exit; | |
695 | default: | |
696 | kfree_skb(skb); | |
697 | break; | |
698 | } | |
699 | ||
700 | setup_for_next: | |
701 | if_usb_submit_rx_urb(priv); | |
702 | rx_exit: | |
9012b28a | 703 | lbs_deb_leave(LBS_DEB_USB); |
876c9d3a MT |
704 | } |
705 | ||
706 | /** | |
707 | * @brief This function downloads data to FW | |
708 | * @param priv pointer to wlan_private structure | |
709 | * @param type type of data | |
710 | * @param buf pointer to data buffer | |
711 | * @param len number of bytes | |
712 | * @return 0 or -1 | |
713 | */ | |
208fdd2f | 714 | static int if_usb_host_to_card(wlan_private * priv, u8 type, u8 * payload, u16 nb) |
876c9d3a MT |
715 | { |
716 | int ret = -1; | |
717 | u32 tmp; | |
718 | struct usb_card_rec *cardp = (struct usb_card_rec *)priv->wlan_dev.card; | |
719 | ||
9012b28a HS |
720 | lbs_deb_usbd(&cardp->udev->dev,"*** type = %u\n", type); |
721 | lbs_deb_usbd(&cardp->udev->dev,"size after = %d\n", nb); | |
876c9d3a MT |
722 | |
723 | if (type == MVMS_CMD) { | |
724 | tmp = cpu_to_le32(CMD_TYPE_REQUEST); | |
725 | priv->wlan_dev.dnld_sent = DNLD_CMD_SENT; | |
726 | memcpy(cardp->bulk_out_buffer, (u8 *) & tmp, | |
727 | MESSAGE_HEADER_LEN); | |
728 | ||
729 | } else { | |
730 | tmp = cpu_to_le32(CMD_TYPE_DATA); | |
731 | priv->wlan_dev.dnld_sent = DNLD_DATA_SENT; | |
732 | memcpy(cardp->bulk_out_buffer, (u8 *) & tmp, | |
733 | MESSAGE_HEADER_LEN); | |
734 | } | |
735 | ||
736 | memcpy((cardp->bulk_out_buffer + MESSAGE_HEADER_LEN), payload, nb); | |
737 | ||
738 | ret = | |
739 | usb_tx_block(priv, cardp->bulk_out_buffer, nb + MESSAGE_HEADER_LEN); | |
740 | ||
741 | return ret; | |
742 | } | |
743 | ||
744 | /* called with adapter->driver_lock held */ | |
208fdd2f | 745 | static int if_usb_get_int_status(wlan_private * priv, u8 * ireg) |
876c9d3a MT |
746 | { |
747 | struct usb_card_rec *cardp = priv->wlan_dev.card; | |
748 | ||
749 | *ireg = cardp->usb_int_cause; | |
750 | cardp->usb_int_cause = 0; | |
751 | ||
9012b28a | 752 | lbs_deb_usbd(&cardp->udev->dev,"Int cause is 0x%X\n", *ireg); |
876c9d3a MT |
753 | |
754 | return 0; | |
755 | } | |
756 | ||
208fdd2f | 757 | static int if_usb_read_event_cause(wlan_private * priv) |
876c9d3a MT |
758 | { |
759 | struct usb_card_rec *cardp = priv->wlan_dev.card; | |
760 | priv->adapter->eventcause = cardp->usb_event_cause; | |
761 | /* Re-submit rx urb here to avoid event lost issue */ | |
762 | if_usb_submit_rx_urb(priv); | |
763 | return 0; | |
764 | } | |
765 | ||
435a1acb | 766 | static int if_usb_reset_device(wlan_private *priv) |
876c9d3a MT |
767 | { |
768 | int ret; | |
769 | ||
3874d0fe | 770 | lbs_deb_enter(LBS_DEB_USB); |
876c9d3a MT |
771 | ret = libertas_prepare_and_send_command(priv, cmd_802_11_reset, |
772 | cmd_act_halt, 0, 0, NULL); | |
773 | msleep_interruptible(10); | |
774 | ||
3874d0fe | 775 | lbs_deb_leave_args(LBS_DEB_USB, "ret %d", ret); |
876c9d3a MT |
776 | return ret; |
777 | } | |
778 | ||
208fdd2f | 779 | static int if_usb_unregister_dev(wlan_private * priv) |
876c9d3a MT |
780 | { |
781 | int ret = 0; | |
782 | ||
783 | /* Need to send a Reset command to device before USB resources freed | |
784 | * and wlan_remove_card() called, then device can handle FW download | |
785 | * again. | |
786 | */ | |
787 | if (priv) | |
435a1acb | 788 | if_usb_reset_device(priv); |
876c9d3a MT |
789 | |
790 | return ret; | |
791 | } | |
792 | ||
793 | ||
794 | /** | |
795 | * @brief This function register usb device and initialize parameter | |
796 | * @param priv pointer to wlan_private | |
797 | * @return 0 or -1 | |
798 | */ | |
208fdd2f | 799 | static int if_usb_register_dev(wlan_private * priv) |
876c9d3a | 800 | { |
876c9d3a | 801 | struct usb_card_rec *cardp = (struct usb_card_rec *)priv->wlan_dev.card; |
9012b28a HS |
802 | |
803 | lbs_deb_enter(LBS_DEB_USB); | |
876c9d3a MT |
804 | |
805 | cardp->priv = priv; | |
806 | cardp->eth_dev = priv->wlan_dev.netdev; | |
807 | priv->hotplug_device = &(cardp->udev->dev); | |
808 | ||
809 | SET_NETDEV_DEV(cardp->eth_dev, &(cardp->udev->dev)); | |
51d84f50 | 810 | SET_NETDEV_DEV(priv->mesh_dev, &(cardp->udev->dev)); |
876c9d3a | 811 | |
9012b28a | 812 | lbs_deb_usbd(&cardp->udev->dev, "udev pointer is at %p\n", |
876c9d3a MT |
813 | cardp->udev); |
814 | ||
9012b28a | 815 | lbs_deb_leave(LBS_DEB_USB); |
876c9d3a MT |
816 | return 0; |
817 | } | |
818 | ||
819 | ||
820 | ||
208fdd2f | 821 | static int if_usb_prog_firmware(wlan_private * priv) |
876c9d3a MT |
822 | { |
823 | struct usb_card_rec *cardp = priv->wlan_dev.card; | |
824 | int i = 0; | |
825 | static int reset_count = 10; | |
9012b28a | 826 | int ret = 0; |
876c9d3a | 827 | |
9012b28a | 828 | lbs_deb_enter(LBS_DEB_USB); |
876c9d3a MT |
829 | |
830 | cardp->rinfo.priv = priv; | |
831 | ||
832 | restart: | |
833 | if (if_usb_submit_rx_urb_fwload(priv) < 0) { | |
9012b28a HS |
834 | lbs_deb_usbd(&cardp->udev->dev, "URB submission is failed\n"); |
835 | ret = -1; | |
836 | goto done; | |
876c9d3a MT |
837 | } |
838 | ||
876c9d3a MT |
839 | cardp->bootcmdresp = 0; |
840 | do { | |
841 | int j = 0; | |
842 | i++; | |
843 | /* Issue Boot command = 1, Boot from Download-FW */ | |
844 | if_usb_issue_boot_command(priv, BOOT_CMD_FW_BY_USB); | |
845 | /* wait for command response */ | |
846 | do { | |
847 | j++; | |
848 | msleep_interruptible(100); | |
849 | } while (cardp->bootcmdresp == 0 && j < 10); | |
850 | } while (cardp->bootcmdresp == 0 && i < 5); | |
851 | ||
852 | if (cardp->bootcmdresp == 0) { | |
853 | if (--reset_count >= 0) { | |
854 | libertas_do_reset(priv); | |
855 | goto restart; | |
856 | } | |
857 | return -1; | |
858 | } | |
876c9d3a MT |
859 | |
860 | i = 0; | |
861 | priv->adapter->fw_ready = 0; | |
862 | ||
863 | cardp->totalbytes = 0; | |
864 | cardp->fwlastblksent = 0; | |
865 | cardp->CRC_OK = 1; | |
866 | cardp->fwdnldover = 0; | |
867 | cardp->fwseqnum = -1; | |
868 | cardp->totalbytes = 0; | |
869 | cardp->fwfinalblk = 0; | |
870 | ||
871 | if_prog_firmware(priv); | |
872 | ||
873 | do { | |
9012b28a | 874 | lbs_deb_usbd(&cardp->udev->dev,"Wlan sched timeout\n"); |
876c9d3a MT |
875 | i++; |
876 | msleep_interruptible(100); | |
877 | if (priv->adapter->surpriseremoved || i >= 20) | |
878 | break; | |
879 | } while (!cardp->fwdnldover); | |
880 | ||
881 | if (!cardp->fwdnldover) { | |
882 | lbs_pr_info("failed to load fw, resetting device!\n"); | |
883 | if (--reset_count >= 0) { | |
884 | libertas_do_reset(priv); | |
885 | goto restart; | |
886 | } | |
887 | ||
888 | lbs_pr_info("FW download failure, time = %d ms\n", i * 100); | |
9012b28a HS |
889 | ret = -1; |
890 | goto done; | |
876c9d3a MT |
891 | } |
892 | ||
893 | if_usb_submit_rx_urb(priv); | |
894 | ||
895 | /* Delay 200 ms to waiting for the FW ready */ | |
896 | msleep_interruptible(200); | |
897 | ||
898 | priv->adapter->fw_ready = 1; | |
899 | ||
9012b28a HS |
900 | done: |
901 | lbs_deb_leave_args(LBS_DEB_USB, "ret %d", ret); | |
902 | return ret; | |
876c9d3a MT |
903 | } |
904 | ||
876c9d3a MT |
905 | #ifdef CONFIG_PM |
906 | static int if_usb_suspend(struct usb_interface *intf, pm_message_t message) | |
907 | { | |
908 | struct usb_card_rec *cardp = usb_get_intfdata(intf); | |
909 | wlan_private *priv = cardp->priv; | |
910 | ||
9012b28a | 911 | lbs_deb_enter(LBS_DEB_USB); |
876c9d3a MT |
912 | |
913 | if (priv->adapter->psstate != PS_STATE_FULL_POWER) | |
914 | return -1; | |
915 | ||
916 | netif_device_detach(cardp->eth_dev); | |
51d84f50 | 917 | netif_device_detach(priv->mesh_dev); |
876c9d3a MT |
918 | |
919 | /* Unlink tx & rx urb */ | |
920 | usb_kill_urb(cardp->tx_urb); | |
921 | usb_kill_urb(cardp->rx_urb); | |
922 | ||
923 | cardp->rx_urb_recall = 1; | |
924 | ||
9012b28a | 925 | lbs_deb_leave(LBS_DEB_USB); |
876c9d3a MT |
926 | return 0; |
927 | } | |
928 | ||
929 | static int if_usb_resume(struct usb_interface *intf) | |
930 | { | |
931 | struct usb_card_rec *cardp = usb_get_intfdata(intf); | |
51d84f50 | 932 | wlan_private *priv = cardp->priv; |
876c9d3a | 933 | |
9012b28a | 934 | lbs_deb_enter(LBS_DEB_USB); |
876c9d3a MT |
935 | |
936 | cardp->rx_urb_recall = 0; | |
937 | ||
938 | if_usb_submit_rx_urb(cardp->priv); | |
939 | ||
940 | netif_device_attach(cardp->eth_dev); | |
51d84f50 | 941 | netif_device_attach(priv->mesh_dev); |
876c9d3a | 942 | |
9012b28a | 943 | lbs_deb_leave(LBS_DEB_USB); |
876c9d3a MT |
944 | return 0; |
945 | } | |
946 | #else | |
947 | #define if_usb_suspend NULL | |
948 | #define if_usb_resume NULL | |
949 | #endif | |
950 | ||
951 | static struct usb_driver if_usb_driver = { | |
952 | /* driver name */ | |
953 | .name = usbdriver_name, | |
954 | /* probe function name */ | |
955 | .probe = if_usb_probe, | |
956 | /* disconnect function name */ | |
957 | .disconnect = if_usb_disconnect, | |
958 | /* device signature table */ | |
959 | .id_table = if_usb_table, | |
960 | .suspend = if_usb_suspend, | |
961 | .resume = if_usb_resume, | |
962 | }; | |
963 | ||
084708b6 | 964 | static int if_usb_init_module(void) |
876c9d3a | 965 | { |
084708b6 | 966 | int ret = 0; |
876c9d3a | 967 | |
084708b6 HS |
968 | lbs_deb_enter(LBS_DEB_MAIN); |
969 | ||
970 | if (libertas_fw_name == NULL) { | |
971 | libertas_fw_name = default_fw_name; | |
972 | } | |
973 | ||
974 | ret = usb_register(&if_usb_driver); | |
975 | ||
976 | lbs_deb_leave_args(LBS_DEB_MAIN, "ret %d", ret); | |
977 | return ret; | |
876c9d3a MT |
978 | } |
979 | ||
084708b6 | 980 | static void if_usb_exit_module(void) |
876c9d3a | 981 | { |
435a1acb HS |
982 | struct list_head *ptr; |
983 | struct usb_card_rec *cardp; | |
3874d0fe | 984 | |
084708b6 HS |
985 | lbs_deb_enter(LBS_DEB_MAIN); |
986 | ||
435a1acb HS |
987 | list_for_each(ptr, &usb_devices) { |
988 | cardp = list_entry(ptr, struct usb_card_rec, list); | |
989 | if_usb_reset_device((wlan_private *) cardp->priv); | |
3874d0fe HS |
990 | } |
991 | ||
876c9d3a MT |
992 | /* API unregisters the driver from USB subsystem */ |
993 | usb_deregister(&if_usb_driver); | |
084708b6 HS |
994 | |
995 | lbs_deb_leave(LBS_DEB_MAIN); | |
876c9d3a | 996 | } |
084708b6 HS |
997 | |
998 | module_init(if_usb_init_module); | |
999 | module_exit(if_usb_exit_module); | |
1000 | ||
1001 | MODULE_DESCRIPTION("8388 USB WLAN Driver"); | |
1002 | MODULE_AUTHOR("Marvell International Ltd."); | |
1003 | MODULE_LICENSE("GPL"); |