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; | |
634b8f49 | 64 | struct net_device *dev = priv->dev; |
876c9d3a MT |
65 | |
66 | /* handle the transmission complete validations */ | |
67 | ||
68 | if (urb->status != 0) { | |
69 | /* print the failure status number for debug */ | |
b46794df | 70 | lbs_pr_info("URB in failure status: %d\n", urb->status); |
876c9d3a | 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 | */ |
634b8f49 | 77 | priv->dnld_sent = DNLD_RES_RECEIVED; |
876c9d3a MT |
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 | ||
7732ca45 | 210 | if (!(priv = libertas_add_card(cardp, &udev->dev))) |
78523daa | 211 | goto dealloc; |
3874d0fe | 212 | |
7732ca45 | 213 | if (libertas_add_mesh(priv, &udev->dev)) |
6a812157 | 214 | goto err_add_mesh; |
51d84f50 | 215 | |
208fdd2f HS |
216 | priv->hw_register_dev = if_usb_register_dev; |
217 | priv->hw_unregister_dev = if_usb_unregister_dev; | |
218 | priv->hw_prog_firmware = if_usb_prog_firmware; | |
219 | priv->hw_host_to_card = if_usb_host_to_card; | |
220 | priv->hw_get_int_status = if_usb_get_int_status; | |
221 | priv->hw_read_event_cause = if_usb_read_event_cause; | |
222 | ||
084708b6 | 223 | if (libertas_activate_card(priv, libertas_fw_name)) |
6a812157 | 224 | goto err_activate_card; |
32a74b7c | 225 | |
435a1acb | 226 | list_add_tail(&cardp->list, &usb_devices); |
3874d0fe | 227 | |
876c9d3a | 228 | usb_get_dev(udev); |
435a1acb | 229 | usb_set_intfdata(intf, cardp); |
876c9d3a | 230 | |
876c9d3a MT |
231 | return 0; |
232 | ||
6a812157 | 233 | err_activate_card: |
c7236831 | 234 | libertas_remove_mesh(priv); |
6a812157 | 235 | err_add_mesh: |
634b8f49 | 236 | free_netdev(priv->dev); |
6a812157 | 237 | kfree(priv->adapter); |
876c9d3a | 238 | dealloc: |
435a1acb | 239 | if_usb_free(cardp); |
876c9d3a MT |
240 | |
241 | error: | |
242 | return -ENOMEM; | |
243 | } | |
244 | ||
245 | /** | |
246 | * @brief free resource and cleanup | |
435a1acb | 247 | * @param intf USB interface structure |
876c9d3a MT |
248 | * @return N/A |
249 | */ | |
250 | static void if_usb_disconnect(struct usb_interface *intf) | |
251 | { | |
252 | struct usb_card_rec *cardp = usb_get_intfdata(intf); | |
253 | wlan_private *priv = (wlan_private *) cardp->priv; | |
254 | wlan_adapter *adapter = NULL; | |
255 | ||
256 | adapter = priv->adapter; | |
257 | ||
258 | /* | |
259 | * Update Surprise removed to TRUE | |
260 | */ | |
261 | adapter->surpriseremoved = 1; | |
262 | ||
435a1acb | 263 | list_del(&cardp->list); |
3874d0fe | 264 | |
876c9d3a | 265 | /* card is removed and we can call wlan_remove_card */ |
9012b28a | 266 | lbs_deb_usbd(&cardp->udev->dev, "call remove card\n"); |
084708b6 HS |
267 | libertas_remove_mesh(priv); |
268 | libertas_remove_card(priv); | |
876c9d3a MT |
269 | |
270 | /* Unlink and free urb */ | |
271 | if_usb_free(cardp); | |
272 | ||
273 | usb_set_intfdata(intf, NULL); | |
274 | usb_put_dev(interface_to_usbdev(intf)); | |
275 | ||
276 | return; | |
277 | } | |
278 | ||
279 | /** | |
280 | * @brief This function download FW | |
281 | * @param priv pointer to wlan_private | |
282 | * @return 0 | |
283 | */ | |
284 | static int if_prog_firmware(wlan_private * priv) | |
285 | { | |
634b8f49 | 286 | struct usb_card_rec *cardp = priv->card; |
876c9d3a MT |
287 | struct FWData *fwdata; |
288 | struct fwheader *fwheader; | |
289 | u8 *firmware = priv->firmware->data; | |
290 | ||
291 | fwdata = kmalloc(sizeof(struct FWData), GFP_ATOMIC); | |
292 | ||
293 | if (!fwdata) | |
294 | return -1; | |
295 | ||
296 | fwheader = &fwdata->fwheader; | |
297 | ||
298 | if (!cardp->CRC_OK) { | |
299 | cardp->totalbytes = cardp->fwlastblksent; | |
300 | cardp->fwseqnum = cardp->lastseqnum - 1; | |
301 | } | |
302 | ||
9012b28a HS |
303 | /* |
304 | lbs_deb_usbd(&cardp->udev->dev, "totalbytes = %d\n", | |
876c9d3a | 305 | cardp->totalbytes); |
9012b28a | 306 | */ |
876c9d3a MT |
307 | |
308 | memcpy(fwheader, &firmware[cardp->totalbytes], | |
309 | sizeof(struct fwheader)); | |
310 | ||
311 | cardp->fwlastblksent = cardp->totalbytes; | |
312 | cardp->totalbytes += sizeof(struct fwheader); | |
313 | ||
9012b28a | 314 | /* lbs_deb_usbd(&cardp->udev->dev,"Copy Data\n"); */ |
876c9d3a MT |
315 | memcpy(fwdata->data, &firmware[cardp->totalbytes], |
316 | fwdata->fwheader.datalength); | |
317 | ||
9012b28a HS |
318 | /* |
319 | lbs_deb_usbd(&cardp->udev->dev, | |
876c9d3a | 320 | "Data length = %d\n", fwdata->fwheader.datalength); |
9012b28a | 321 | */ |
876c9d3a MT |
322 | |
323 | cardp->fwseqnum = cardp->fwseqnum + 1; | |
324 | ||
325 | fwdata->seqnum = cardp->fwseqnum; | |
326 | cardp->lastseqnum = fwdata->seqnum; | |
327 | cardp->totalbytes += fwdata->fwheader.datalength; | |
328 | ||
329 | if (fwheader->dnldcmd == FW_HAS_DATA_TO_RECV) { | |
9012b28a HS |
330 | /* |
331 | lbs_deb_usbd(&cardp->udev->dev, "There is data to follow\n"); | |
332 | lbs_deb_usbd(&cardp->udev->dev, | |
876c9d3a MT |
333 | "seqnum = %d totalbytes = %d\n", cardp->fwseqnum, |
334 | cardp->totalbytes); | |
9012b28a | 335 | */ |
876c9d3a MT |
336 | memcpy(cardp->bulk_out_buffer, fwheader, FW_DATA_XMIT_SIZE); |
337 | usb_tx_block(priv, cardp->bulk_out_buffer, FW_DATA_XMIT_SIZE); | |
338 | ||
339 | } else if (fwdata->fwheader.dnldcmd == FW_HAS_LAST_BLOCK) { | |
9012b28a HS |
340 | /* |
341 | lbs_deb_usbd(&cardp->udev->dev, | |
876c9d3a | 342 | "Host has finished FW downloading\n"); |
9012b28a | 343 | lbs_deb_usbd(&cardp->udev->dev, |
876c9d3a | 344 | "Donwloading FW JUMP BLOCK\n"); |
9012b28a | 345 | */ |
876c9d3a MT |
346 | memcpy(cardp->bulk_out_buffer, fwheader, FW_DATA_XMIT_SIZE); |
347 | usb_tx_block(priv, cardp->bulk_out_buffer, FW_DATA_XMIT_SIZE); | |
348 | cardp->fwfinalblk = 1; | |
349 | } | |
350 | ||
9012b28a HS |
351 | /* |
352 | lbs_deb_usbd(&cardp->udev->dev, | |
876c9d3a MT |
353 | "The firmware download is done size is %d\n", |
354 | cardp->totalbytes); | |
9012b28a | 355 | */ |
876c9d3a MT |
356 | |
357 | kfree(fwdata); | |
358 | ||
359 | return 0; | |
360 | } | |
361 | ||
362 | static int libertas_do_reset(wlan_private *priv) | |
363 | { | |
364 | int ret; | |
634b8f49 | 365 | struct usb_card_rec *cardp = priv->card; |
876c9d3a | 366 | |
3874d0fe HS |
367 | lbs_deb_enter(LBS_DEB_USB); |
368 | ||
876c9d3a MT |
369 | ret = usb_reset_device(cardp->udev); |
370 | if (!ret) { | |
371 | msleep(10); | |
435a1acb | 372 | if_usb_reset_device(priv); |
876c9d3a MT |
373 | msleep(10); |
374 | } | |
3874d0fe HS |
375 | |
376 | lbs_deb_leave_args(LBS_DEB_USB, "ret %d", ret); | |
377 | ||
876c9d3a MT |
378 | return ret; |
379 | } | |
380 | ||
381 | /** | |
382 | * @brief This function transfer the data to the device. | |
383 | * @param priv pointer to wlan_private | |
384 | * @param payload pointer to payload data | |
385 | * @param nb data length | |
386 | * @return 0 or -1 | |
387 | */ | |
388 | int usb_tx_block(wlan_private * priv, u8 * payload, u16 nb) | |
389 | { | |
390 | /* pointer to card structure */ | |
634b8f49 | 391 | struct usb_card_rec *cardp = priv->card; |
876c9d3a MT |
392 | int ret = -1; |
393 | ||
394 | /* check if device is removed */ | |
395 | if (priv->adapter->surpriseremoved) { | |
9012b28a | 396 | lbs_deb_usbd(&cardp->udev->dev, "Device removed\n"); |
876c9d3a MT |
397 | goto tx_ret; |
398 | } | |
399 | ||
400 | usb_fill_bulk_urb(cardp->tx_urb, cardp->udev, | |
401 | usb_sndbulkpipe(cardp->udev, | |
402 | cardp->bulk_out_endpointAddr), | |
403 | payload, nb, if_usb_write_bulk_callback, priv); | |
404 | ||
405 | cardp->tx_urb->transfer_flags |= URB_ZERO_PACKET; | |
406 | ||
407 | if ((ret = usb_submit_urb(cardp->tx_urb, GFP_ATOMIC))) { | |
408 | /* transfer failed */ | |
9012b28a | 409 | lbs_deb_usbd(&cardp->udev->dev, "usb_submit_urb failed\n"); |
876c9d3a MT |
410 | ret = -1; |
411 | } else { | |
9012b28a | 412 | /* lbs_deb_usbd(&cardp->udev->dev, "usb_submit_urb success\n"); */ |
876c9d3a MT |
413 | ret = 0; |
414 | } | |
415 | ||
416 | tx_ret: | |
417 | return ret; | |
418 | } | |
419 | ||
420 | static int __if_usb_submit_rx_urb(wlan_private * priv, | |
421 | void (*callbackfn) | |
422 | (struct urb *urb)) | |
423 | { | |
634b8f49 | 424 | struct usb_card_rec *cardp = priv->card; |
876c9d3a MT |
425 | struct sk_buff *skb; |
426 | struct read_cb_info *rinfo = &cardp->rinfo; | |
427 | int ret = -1; | |
428 | ||
429 | if (!(skb = dev_alloc_skb(MRVDRV_ETH_RX_PACKET_BUFFER_SIZE))) { | |
430 | lbs_pr_err("No free skb\n"); | |
431 | goto rx_ret; | |
432 | } | |
433 | ||
434 | rinfo->skb = skb; | |
435 | ||
436 | /* Fill the receive configuration URB and initialise the Rx call back */ | |
437 | usb_fill_bulk_urb(cardp->rx_urb, cardp->udev, | |
438 | usb_rcvbulkpipe(cardp->udev, | |
439 | cardp->bulk_in_endpointAddr), | |
4269e2ad | 440 | (void *) (skb->tail + (size_t) IPFIELD_ALIGN_OFFSET), |
876c9d3a MT |
441 | MRVDRV_ETH_RX_PACKET_BUFFER_SIZE, callbackfn, |
442 | rinfo); | |
443 | ||
444 | cardp->rx_urb->transfer_flags |= URB_ZERO_PACKET; | |
445 | ||
9012b28a | 446 | /* lbs_deb_usbd(&cardp->udev->dev, "Pointer for rx_urb %p\n", cardp->rx_urb); */ |
876c9d3a MT |
447 | if ((ret = usb_submit_urb(cardp->rx_urb, GFP_ATOMIC))) { |
448 | /* handle failure conditions */ | |
9012b28a | 449 | lbs_deb_usbd(&cardp->udev->dev, "Submit Rx URB failed\n"); |
876c9d3a MT |
450 | ret = -1; |
451 | } else { | |
9012b28a | 452 | /* lbs_deb_usbd(&cardp->udev->dev, "Submit Rx URB success\n"); */ |
876c9d3a MT |
453 | ret = 0; |
454 | } | |
455 | ||
456 | rx_ret: | |
457 | return ret; | |
458 | } | |
459 | ||
460 | static inline int if_usb_submit_rx_urb_fwload(wlan_private * priv) | |
461 | { | |
462 | return __if_usb_submit_rx_urb(priv, &if_usb_receive_fwload); | |
463 | } | |
464 | ||
465 | static inline int if_usb_submit_rx_urb(wlan_private * priv) | |
466 | { | |
467 | return __if_usb_submit_rx_urb(priv, &if_usb_receive); | |
468 | } | |
469 | ||
470 | static void if_usb_receive_fwload(struct urb *urb) | |
471 | { | |
472 | struct read_cb_info *rinfo = (struct read_cb_info *)urb->context; | |
473 | wlan_private *priv = rinfo->priv; | |
474 | struct sk_buff *skb = rinfo->skb; | |
634b8f49 | 475 | struct usb_card_rec *cardp = (struct usb_card_rec *)priv->card; |
876c9d3a MT |
476 | struct fwsyncheader *syncfwheader; |
477 | struct bootcmdrespStr bootcmdresp; | |
478 | ||
479 | if (urb->status) { | |
9012b28a | 480 | lbs_deb_usbd(&cardp->udev->dev, |
876c9d3a MT |
481 | "URB status is failed during fw load\n"); |
482 | kfree_skb(skb); | |
483 | return; | |
484 | } | |
485 | ||
486 | if (cardp->bootcmdresp == 0) { | |
487 | memcpy (&bootcmdresp, skb->data + IPFIELD_ALIGN_OFFSET, | |
488 | sizeof(bootcmdresp)); | |
489 | if (cardp->udev->descriptor.bcdDevice < 0x3106) { | |
490 | kfree_skb(skb); | |
491 | if_usb_submit_rx_urb_fwload(priv); | |
492 | cardp->bootcmdresp = 1; | |
9012b28a | 493 | lbs_deb_usbd(&cardp->udev->dev, |
876c9d3a MT |
494 | "Received valid boot command response\n"); |
495 | return; | |
496 | } | |
497 | if (bootcmdresp.u32magicnumber != BOOT_CMD_MAGIC_NUMBER) { | |
498 | lbs_pr_info( | |
499 | "boot cmd response wrong magic number (0x%x)\n", | |
500 | bootcmdresp.u32magicnumber); | |
501 | } else if (bootcmdresp.u8cmd_tag != BOOT_CMD_FW_BY_USB) { | |
502 | lbs_pr_info( | |
503 | "boot cmd response cmd_tag error (%d)\n", | |
504 | bootcmdresp.u8cmd_tag); | |
505 | } else if (bootcmdresp.u8result != BOOT_CMD_RESP_OK) { | |
506 | lbs_pr_info( | |
507 | "boot cmd response result error (%d)\n", | |
508 | bootcmdresp.u8result); | |
509 | } else { | |
510 | cardp->bootcmdresp = 1; | |
9012b28a | 511 | lbs_deb_usbd(&cardp->udev->dev, |
876c9d3a MT |
512 | "Received valid boot command response\n"); |
513 | } | |
514 | kfree_skb(skb); | |
515 | if_usb_submit_rx_urb_fwload(priv); | |
516 | return; | |
517 | } | |
518 | ||
519 | syncfwheader = kmalloc(sizeof(struct fwsyncheader), GFP_ATOMIC); | |
520 | if (!syncfwheader) { | |
9012b28a | 521 | lbs_deb_usbd(&cardp->udev->dev, "Failure to allocate syncfwheader\n"); |
876c9d3a MT |
522 | kfree_skb(skb); |
523 | return; | |
524 | } | |
525 | ||
526 | memcpy(syncfwheader, skb->data + IPFIELD_ALIGN_OFFSET, | |
527 | sizeof(struct fwsyncheader)); | |
528 | ||
529 | if (!syncfwheader->cmd) { | |
9012b28a HS |
530 | /* |
531 | lbs_deb_usbd(&cardp->udev->dev, | |
876c9d3a | 532 | "FW received Blk with correct CRC\n"); |
9012b28a | 533 | lbs_deb_usbd(&cardp->udev->dev, |
876c9d3a MT |
534 | "FW received Blk seqnum = %d\n", |
535 | syncfwheader->seqnum); | |
9012b28a | 536 | */ |
876c9d3a MT |
537 | cardp->CRC_OK = 1; |
538 | } else { | |
9012b28a | 539 | lbs_deb_usbd(&cardp->udev->dev, |
876c9d3a MT |
540 | "FW received Blk with CRC error\n"); |
541 | cardp->CRC_OK = 0; | |
542 | } | |
543 | ||
544 | kfree_skb(skb); | |
545 | ||
546 | if (cardp->fwfinalblk) { | |
547 | cardp->fwdnldover = 1; | |
548 | goto exit; | |
549 | } | |
550 | ||
551 | if_prog_firmware(priv); | |
552 | ||
553 | if_usb_submit_rx_urb_fwload(priv); | |
554 | exit: | |
555 | kfree(syncfwheader); | |
556 | ||
557 | return; | |
558 | ||
559 | } | |
560 | ||
561 | #define MRVDRV_MIN_PKT_LEN 30 | |
562 | ||
563 | static inline void process_cmdtypedata(int recvlength, struct sk_buff *skb, | |
564 | struct usb_card_rec *cardp, | |
565 | wlan_private *priv) | |
566 | { | |
567 | if (recvlength > MRVDRV_ETH_RX_PACKET_BUFFER_SIZE + | |
568 | MESSAGE_HEADER_LEN || recvlength < MRVDRV_MIN_PKT_LEN) { | |
9012b28a | 569 | lbs_deb_usbd(&cardp->udev->dev, |
876c9d3a MT |
570 | "Packet length is Invalid\n"); |
571 | kfree_skb(skb); | |
572 | return; | |
573 | } | |
574 | ||
575 | skb_reserve(skb, IPFIELD_ALIGN_OFFSET); | |
576 | skb_put(skb, recvlength); | |
577 | skb_pull(skb, MESSAGE_HEADER_LEN); | |
578 | libertas_process_rxed_packet(priv, skb); | |
634b8f49 | 579 | priv->upld_len = (recvlength - MESSAGE_HEADER_LEN); |
876c9d3a MT |
580 | } |
581 | ||
582 | static inline void process_cmdrequest(int recvlength, u8 *recvbuff, | |
583 | struct sk_buff *skb, | |
584 | struct usb_card_rec *cardp, | |
585 | wlan_private *priv) | |
586 | { | |
587 | u8 *cmdbuf; | |
588 | if (recvlength > MRVDRV_SIZE_OF_CMD_BUFFER) { | |
9012b28a | 589 | lbs_deb_usbd(&cardp->udev->dev, |
876c9d3a MT |
590 | "The receive buffer is too large\n"); |
591 | kfree_skb(skb); | |
592 | return; | |
593 | } | |
594 | ||
595 | if (!in_interrupt()) | |
596 | BUG(); | |
597 | ||
598 | spin_lock(&priv->adapter->driver_lock); | |
599 | /* take care of cur_cmd = NULL case by reading the | |
600 | * data to clear the interrupt */ | |
601 | if (!priv->adapter->cur_cmd) { | |
634b8f49 | 602 | cmdbuf = priv->upld_buf; |
876c9d3a MT |
603 | priv->adapter->hisregcpy &= ~his_cmdupldrdy; |
604 | } else | |
605 | cmdbuf = priv->adapter->cur_cmd->bufvirtualaddr; | |
606 | ||
607 | cardp->usb_int_cause |= his_cmdupldrdy; | |
634b8f49 | 608 | priv->upld_len = (recvlength - MESSAGE_HEADER_LEN); |
876c9d3a | 609 | memcpy(cmdbuf, recvbuff + MESSAGE_HEADER_LEN, |
634b8f49 | 610 | priv->upld_len); |
876c9d3a MT |
611 | |
612 | kfree_skb(skb); | |
634b8f49 | 613 | libertas_interrupt(priv->dev); |
876c9d3a MT |
614 | spin_unlock(&priv->adapter->driver_lock); |
615 | ||
9012b28a | 616 | lbs_deb_usbd(&cardp->udev->dev, |
876c9d3a MT |
617 | "Wake up main thread to handle cmd response\n"); |
618 | ||
619 | return; | |
620 | } | |
621 | ||
622 | /** | |
623 | * @brief This function reads of the packet into the upload buff, | |
624 | * wake up the main thread and initialise the Rx callack. | |
625 | * | |
626 | * @param urb pointer to struct urb | |
627 | * @return N/A | |
628 | */ | |
629 | static void if_usb_receive(struct urb *urb) | |
630 | { | |
631 | struct read_cb_info *rinfo = (struct read_cb_info *)urb->context; | |
632 | wlan_private *priv = rinfo->priv; | |
633 | struct sk_buff *skb = rinfo->skb; | |
634b8f49 | 634 | struct usb_card_rec *cardp = (struct usb_card_rec *)priv->card; |
876c9d3a MT |
635 | |
636 | int recvlength = urb->actual_length; | |
637 | u8 *recvbuff = NULL; | |
638 | u32 recvtype; | |
639 | ||
9012b28a | 640 | lbs_deb_enter(LBS_DEB_USB); |
876c9d3a MT |
641 | |
642 | if (recvlength) { | |
643 | if (urb->status) { | |
9012b28a | 644 | lbs_deb_usbd(&cardp->udev->dev, |
876c9d3a MT |
645 | "URB status is failed\n"); |
646 | kfree_skb(skb); | |
647 | goto setup_for_next; | |
648 | } | |
649 | ||
650 | recvbuff = skb->data + IPFIELD_ALIGN_OFFSET; | |
651 | memcpy(&recvtype, recvbuff, sizeof(u32)); | |
9012b28a | 652 | lbs_deb_usbd(&cardp->udev->dev, |
876c9d3a | 653 | "Recv length = 0x%x\n", recvlength); |
9012b28a | 654 | lbs_deb_usbd(&cardp->udev->dev, |
876c9d3a MT |
655 | "Receive type = 0x%X\n", recvtype); |
656 | recvtype = le32_to_cpu(recvtype); | |
9012b28a | 657 | lbs_deb_usbd(&cardp->udev->dev, |
876c9d3a MT |
658 | "Receive type after = 0x%X\n", recvtype); |
659 | } else if (urb->status) | |
660 | goto rx_exit; | |
661 | ||
662 | ||
663 | switch (recvtype) { | |
664 | case CMD_TYPE_DATA: | |
665 | process_cmdtypedata(recvlength, skb, cardp, priv); | |
666 | break; | |
667 | ||
668 | case CMD_TYPE_REQUEST: | |
669 | process_cmdrequest(recvlength, recvbuff, skb, cardp, priv); | |
670 | break; | |
671 | ||
672 | case CMD_TYPE_INDICATION: | |
673 | /* Event cause handling */ | |
674 | spin_lock(&priv->adapter->driver_lock); | |
675 | cardp->usb_event_cause = *(u32 *) (recvbuff + MESSAGE_HEADER_LEN); | |
9012b28a | 676 | lbs_deb_usbd(&cardp->udev->dev,"**EVENT** 0x%X\n", |
876c9d3a MT |
677 | cardp->usb_event_cause); |
678 | if (cardp->usb_event_cause & 0xffff0000) { | |
679 | libertas_send_tx_feedback(priv); | |
12a4d265 | 680 | spin_unlock(&priv->adapter->driver_lock); |
876c9d3a MT |
681 | break; |
682 | } | |
683 | cardp->usb_event_cause = le32_to_cpu(cardp->usb_event_cause) << 3; | |
684 | cardp->usb_int_cause |= his_cardevent; | |
685 | kfree_skb(skb); | |
634b8f49 | 686 | libertas_interrupt(priv->dev); |
876c9d3a MT |
687 | spin_unlock(&priv->adapter->driver_lock); |
688 | goto rx_exit; | |
689 | default: | |
690 | kfree_skb(skb); | |
691 | break; | |
692 | } | |
693 | ||
694 | setup_for_next: | |
695 | if_usb_submit_rx_urb(priv); | |
696 | rx_exit: | |
9012b28a | 697 | lbs_deb_leave(LBS_DEB_USB); |
876c9d3a MT |
698 | } |
699 | ||
700 | /** | |
701 | * @brief This function downloads data to FW | |
702 | * @param priv pointer to wlan_private structure | |
703 | * @param type type of data | |
704 | * @param buf pointer to data buffer | |
705 | * @param len number of bytes | |
706 | * @return 0 or -1 | |
707 | */ | |
208fdd2f | 708 | static int if_usb_host_to_card(wlan_private * priv, u8 type, u8 * payload, u16 nb) |
876c9d3a MT |
709 | { |
710 | int ret = -1; | |
711 | u32 tmp; | |
634b8f49 | 712 | struct usb_card_rec *cardp = (struct usb_card_rec *)priv->card; |
876c9d3a | 713 | |
9012b28a HS |
714 | lbs_deb_usbd(&cardp->udev->dev,"*** type = %u\n", type); |
715 | lbs_deb_usbd(&cardp->udev->dev,"size after = %d\n", nb); | |
876c9d3a MT |
716 | |
717 | if (type == MVMS_CMD) { | |
718 | tmp = cpu_to_le32(CMD_TYPE_REQUEST); | |
634b8f49 | 719 | priv->dnld_sent = DNLD_CMD_SENT; |
876c9d3a MT |
720 | memcpy(cardp->bulk_out_buffer, (u8 *) & tmp, |
721 | MESSAGE_HEADER_LEN); | |
722 | ||
723 | } else { | |
724 | tmp = cpu_to_le32(CMD_TYPE_DATA); | |
634b8f49 | 725 | priv->dnld_sent = DNLD_DATA_SENT; |
876c9d3a MT |
726 | memcpy(cardp->bulk_out_buffer, (u8 *) & tmp, |
727 | MESSAGE_HEADER_LEN); | |
728 | } | |
729 | ||
730 | memcpy((cardp->bulk_out_buffer + MESSAGE_HEADER_LEN), payload, nb); | |
731 | ||
732 | ret = | |
733 | usb_tx_block(priv, cardp->bulk_out_buffer, nb + MESSAGE_HEADER_LEN); | |
734 | ||
735 | return ret; | |
736 | } | |
737 | ||
738 | /* called with adapter->driver_lock held */ | |
208fdd2f | 739 | static int if_usb_get_int_status(wlan_private * priv, u8 * ireg) |
876c9d3a | 740 | { |
634b8f49 | 741 | struct usb_card_rec *cardp = priv->card; |
876c9d3a MT |
742 | |
743 | *ireg = cardp->usb_int_cause; | |
744 | cardp->usb_int_cause = 0; | |
745 | ||
9012b28a | 746 | lbs_deb_usbd(&cardp->udev->dev,"Int cause is 0x%X\n", *ireg); |
876c9d3a MT |
747 | |
748 | return 0; | |
749 | } | |
750 | ||
208fdd2f | 751 | static int if_usb_read_event_cause(wlan_private * priv) |
876c9d3a | 752 | { |
634b8f49 | 753 | struct usb_card_rec *cardp = priv->card; |
876c9d3a MT |
754 | priv->adapter->eventcause = cardp->usb_event_cause; |
755 | /* Re-submit rx urb here to avoid event lost issue */ | |
756 | if_usb_submit_rx_urb(priv); | |
757 | return 0; | |
758 | } | |
759 | ||
435a1acb | 760 | static int if_usb_reset_device(wlan_private *priv) |
876c9d3a MT |
761 | { |
762 | int ret; | |
763 | ||
3874d0fe | 764 | lbs_deb_enter(LBS_DEB_USB); |
876c9d3a MT |
765 | ret = libertas_prepare_and_send_command(priv, cmd_802_11_reset, |
766 | cmd_act_halt, 0, 0, NULL); | |
767 | msleep_interruptible(10); | |
768 | ||
3874d0fe | 769 | lbs_deb_leave_args(LBS_DEB_USB, "ret %d", ret); |
876c9d3a MT |
770 | return ret; |
771 | } | |
772 | ||
208fdd2f | 773 | static int if_usb_unregister_dev(wlan_private * priv) |
876c9d3a MT |
774 | { |
775 | int ret = 0; | |
776 | ||
777 | /* Need to send a Reset command to device before USB resources freed | |
778 | * and wlan_remove_card() called, then device can handle FW download | |
779 | * again. | |
780 | */ | |
781 | if (priv) | |
435a1acb | 782 | if_usb_reset_device(priv); |
876c9d3a MT |
783 | |
784 | return ret; | |
785 | } | |
786 | ||
787 | ||
788 | /** | |
789 | * @brief This function register usb device and initialize parameter | |
790 | * @param priv pointer to wlan_private | |
791 | * @return 0 or -1 | |
792 | */ | |
208fdd2f | 793 | static int if_usb_register_dev(wlan_private * priv) |
876c9d3a | 794 | { |
634b8f49 | 795 | struct usb_card_rec *cardp = (struct usb_card_rec *)priv->card; |
9012b28a HS |
796 | |
797 | lbs_deb_enter(LBS_DEB_USB); | |
876c9d3a MT |
798 | |
799 | cardp->priv = priv; | |
634b8f49 | 800 | cardp->eth_dev = priv->dev; |
876c9d3a MT |
801 | priv->hotplug_device = &(cardp->udev->dev); |
802 | ||
9012b28a | 803 | lbs_deb_usbd(&cardp->udev->dev, "udev pointer is at %p\n", |
876c9d3a MT |
804 | cardp->udev); |
805 | ||
9012b28a | 806 | lbs_deb_leave(LBS_DEB_USB); |
876c9d3a MT |
807 | return 0; |
808 | } | |
809 | ||
810 | ||
811 | ||
208fdd2f | 812 | static int if_usb_prog_firmware(wlan_private * priv) |
876c9d3a | 813 | { |
634b8f49 | 814 | struct usb_card_rec *cardp = priv->card; |
876c9d3a MT |
815 | int i = 0; |
816 | static int reset_count = 10; | |
9012b28a | 817 | int ret = 0; |
876c9d3a | 818 | |
9012b28a | 819 | lbs_deb_enter(LBS_DEB_USB); |
876c9d3a MT |
820 | |
821 | cardp->rinfo.priv = priv; | |
822 | ||
823 | restart: | |
824 | if (if_usb_submit_rx_urb_fwload(priv) < 0) { | |
9012b28a HS |
825 | lbs_deb_usbd(&cardp->udev->dev, "URB submission is failed\n"); |
826 | ret = -1; | |
827 | goto done; | |
876c9d3a MT |
828 | } |
829 | ||
876c9d3a MT |
830 | cardp->bootcmdresp = 0; |
831 | do { | |
832 | int j = 0; | |
833 | i++; | |
834 | /* Issue Boot command = 1, Boot from Download-FW */ | |
835 | if_usb_issue_boot_command(priv, BOOT_CMD_FW_BY_USB); | |
836 | /* wait for command response */ | |
837 | do { | |
838 | j++; | |
839 | msleep_interruptible(100); | |
840 | } while (cardp->bootcmdresp == 0 && j < 10); | |
841 | } while (cardp->bootcmdresp == 0 && i < 5); | |
842 | ||
843 | if (cardp->bootcmdresp == 0) { | |
844 | if (--reset_count >= 0) { | |
845 | libertas_do_reset(priv); | |
846 | goto restart; | |
847 | } | |
848 | return -1; | |
849 | } | |
876c9d3a MT |
850 | |
851 | i = 0; | |
852 | priv->adapter->fw_ready = 0; | |
853 | ||
854 | cardp->totalbytes = 0; | |
855 | cardp->fwlastblksent = 0; | |
856 | cardp->CRC_OK = 1; | |
857 | cardp->fwdnldover = 0; | |
858 | cardp->fwseqnum = -1; | |
859 | cardp->totalbytes = 0; | |
860 | cardp->fwfinalblk = 0; | |
861 | ||
862 | if_prog_firmware(priv); | |
863 | ||
864 | do { | |
9012b28a | 865 | lbs_deb_usbd(&cardp->udev->dev,"Wlan sched timeout\n"); |
876c9d3a MT |
866 | i++; |
867 | msleep_interruptible(100); | |
868 | if (priv->adapter->surpriseremoved || i >= 20) | |
869 | break; | |
870 | } while (!cardp->fwdnldover); | |
871 | ||
872 | if (!cardp->fwdnldover) { | |
873 | lbs_pr_info("failed to load fw, resetting device!\n"); | |
874 | if (--reset_count >= 0) { | |
875 | libertas_do_reset(priv); | |
876 | goto restart; | |
877 | } | |
878 | ||
879 | lbs_pr_info("FW download failure, time = %d ms\n", i * 100); | |
9012b28a HS |
880 | ret = -1; |
881 | goto done; | |
876c9d3a MT |
882 | } |
883 | ||
884 | if_usb_submit_rx_urb(priv); | |
885 | ||
886 | /* Delay 200 ms to waiting for the FW ready */ | |
887 | msleep_interruptible(200); | |
888 | ||
889 | priv->adapter->fw_ready = 1; | |
890 | ||
9012b28a HS |
891 | done: |
892 | lbs_deb_leave_args(LBS_DEB_USB, "ret %d", ret); | |
893 | return ret; | |
876c9d3a MT |
894 | } |
895 | ||
876c9d3a MT |
896 | #ifdef CONFIG_PM |
897 | static int if_usb_suspend(struct usb_interface *intf, pm_message_t message) | |
898 | { | |
899 | struct usb_card_rec *cardp = usb_get_intfdata(intf); | |
900 | wlan_private *priv = cardp->priv; | |
901 | ||
9012b28a | 902 | lbs_deb_enter(LBS_DEB_USB); |
876c9d3a MT |
903 | |
904 | if (priv->adapter->psstate != PS_STATE_FULL_POWER) | |
905 | return -1; | |
906 | ||
907 | netif_device_detach(cardp->eth_dev); | |
51d84f50 | 908 | netif_device_detach(priv->mesh_dev); |
876c9d3a MT |
909 | |
910 | /* Unlink tx & rx urb */ | |
911 | usb_kill_urb(cardp->tx_urb); | |
912 | usb_kill_urb(cardp->rx_urb); | |
913 | ||
914 | cardp->rx_urb_recall = 1; | |
915 | ||
9012b28a | 916 | lbs_deb_leave(LBS_DEB_USB); |
876c9d3a MT |
917 | return 0; |
918 | } | |
919 | ||
920 | static int if_usb_resume(struct usb_interface *intf) | |
921 | { | |
922 | struct usb_card_rec *cardp = usb_get_intfdata(intf); | |
51d84f50 | 923 | wlan_private *priv = cardp->priv; |
876c9d3a | 924 | |
9012b28a | 925 | lbs_deb_enter(LBS_DEB_USB); |
876c9d3a MT |
926 | |
927 | cardp->rx_urb_recall = 0; | |
928 | ||
929 | if_usb_submit_rx_urb(cardp->priv); | |
930 | ||
931 | netif_device_attach(cardp->eth_dev); | |
51d84f50 | 932 | netif_device_attach(priv->mesh_dev); |
876c9d3a | 933 | |
9012b28a | 934 | lbs_deb_leave(LBS_DEB_USB); |
876c9d3a MT |
935 | return 0; |
936 | } | |
937 | #else | |
938 | #define if_usb_suspend NULL | |
939 | #define if_usb_resume NULL | |
940 | #endif | |
941 | ||
942 | static struct usb_driver if_usb_driver = { | |
943 | /* driver name */ | |
944 | .name = usbdriver_name, | |
945 | /* probe function name */ | |
946 | .probe = if_usb_probe, | |
947 | /* disconnect function name */ | |
948 | .disconnect = if_usb_disconnect, | |
949 | /* device signature table */ | |
950 | .id_table = if_usb_table, | |
951 | .suspend = if_usb_suspend, | |
952 | .resume = if_usb_resume, | |
953 | }; | |
954 | ||
084708b6 | 955 | static int if_usb_init_module(void) |
876c9d3a | 956 | { |
084708b6 | 957 | int ret = 0; |
876c9d3a | 958 | |
084708b6 HS |
959 | lbs_deb_enter(LBS_DEB_MAIN); |
960 | ||
961 | if (libertas_fw_name == NULL) { | |
962 | libertas_fw_name = default_fw_name; | |
963 | } | |
964 | ||
965 | ret = usb_register(&if_usb_driver); | |
966 | ||
967 | lbs_deb_leave_args(LBS_DEB_MAIN, "ret %d", ret); | |
968 | return ret; | |
876c9d3a MT |
969 | } |
970 | ||
084708b6 | 971 | static void if_usb_exit_module(void) |
876c9d3a | 972 | { |
d43fb8ee | 973 | struct usb_card_rec *cardp, *cardp_temp; |
3874d0fe | 974 | |
084708b6 HS |
975 | lbs_deb_enter(LBS_DEB_MAIN); |
976 | ||
d43fb8ee | 977 | list_for_each_entry_safe(cardp, cardp_temp, &usb_devices, list) |
435a1acb | 978 | if_usb_reset_device((wlan_private *) cardp->priv); |
3874d0fe | 979 | |
876c9d3a MT |
980 | /* API unregisters the driver from USB subsystem */ |
981 | usb_deregister(&if_usb_driver); | |
084708b6 HS |
982 | |
983 | lbs_deb_leave(LBS_DEB_MAIN); | |
876c9d3a | 984 | } |
084708b6 HS |
985 | |
986 | module_init(if_usb_init_module); | |
987 | module_exit(if_usb_exit_module); | |
988 | ||
989 | MODULE_DESCRIPTION("8388 USB WLAN Driver"); | |
990 | MODULE_AUTHOR("Marvell International Ltd."); | |
991 | MODULE_LICENSE("GPL"); |