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Commit | Line | Data |
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876c9d3a MT |
1 | /** |
2 | * This file contains functions used in USB interface module. | |
3 | */ | |
4 | #include <linux/delay.h> | |
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 | 143 | " bDeviceSubClass = 0x%X, bDeviceProtocol = 0x%X\n", |
981f187b DW |
144 | le16_to_cpu(udev->descriptor.bcdUSB), |
145 | udev->descriptor.bDeviceClass, | |
146 | udev->descriptor.bDeviceSubClass, | |
147 | udev->descriptor.bDeviceProtocol); | |
876c9d3a MT |
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", |
981f187b DW |
156 | le16_to_cpu(endpoint->wMaxPacketSize)); |
157 | if (!(cardp->rx_urb = usb_alloc_urb(0, GFP_KERNEL))) { | |
9012b28a | 158 | lbs_deb_usbd(&udev->dev, |
876c9d3a MT |
159 | "Rx URB allocation failed\n"); |
160 | goto dealloc; | |
161 | } | |
435a1acb | 162 | cardp->rx_urb_recall = 0; |
876c9d3a | 163 | |
435a1acb | 164 | cardp->bulk_in_size = |
981f187b | 165 | le16_to_cpu(endpoint->wMaxPacketSize); |
435a1acb | 166 | cardp->bulk_in_endpointAddr = |
876c9d3a MT |
167 | (endpoint-> |
168 | bEndpointAddress & USB_ENDPOINT_NUMBER_MASK); | |
9012b28a | 169 | lbs_deb_usbd(&udev->dev, "in_endpoint = %d\n", |
876c9d3a MT |
170 | endpoint->bEndpointAddress); |
171 | } | |
172 | ||
173 | if (((endpoint-> | |
174 | bEndpointAddress & USB_ENDPOINT_DIR_MASK) == | |
175 | USB_DIR_OUT) | |
176 | && ((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) == | |
177 | USB_ENDPOINT_XFER_BULK)) { | |
178 | /* We found bulk out endpoint */ | |
981f187b | 179 | if (!(cardp->tx_urb = usb_alloc_urb(0, GFP_KERNEL))) { |
9012b28a | 180 | lbs_deb_usbd(&udev->dev, |
876c9d3a MT |
181 | "Tx URB allocation failed\n"); |
182 | goto dealloc; | |
183 | } | |
184 | ||
435a1acb | 185 | cardp->bulk_out_size = |
981f187b | 186 | le16_to_cpu(endpoint->wMaxPacketSize); |
9012b28a | 187 | lbs_deb_usbd(&udev->dev, |
981f187b DW |
188 | "Bulk out size is %d\n", |
189 | le16_to_cpu(endpoint->wMaxPacketSize)); | |
435a1acb | 190 | cardp->bulk_out_endpointAddr = |
876c9d3a | 191 | endpoint->bEndpointAddress; |
9012b28a | 192 | lbs_deb_usbd(&udev->dev, "out_endpoint = %d\n", |
876c9d3a | 193 | endpoint->bEndpointAddress); |
435a1acb | 194 | cardp->bulk_out_buffer = |
876c9d3a MT |
195 | kmalloc(MRVDRV_ETH_TX_PACKET_BUFFER_SIZE, |
196 | GFP_KERNEL); | |
197 | ||
435a1acb | 198 | if (!cardp->bulk_out_buffer) { |
9012b28a | 199 | lbs_deb_usbd(&udev->dev, |
876c9d3a MT |
200 | "Could not allocate buffer\n"); |
201 | goto dealloc; | |
202 | } | |
203 | } | |
204 | } | |
205 | ||
7732ca45 | 206 | if (!(priv = libertas_add_card(cardp, &udev->dev))) |
78523daa | 207 | goto dealloc; |
3874d0fe | 208 | |
7732ca45 | 209 | if (libertas_add_mesh(priv, &udev->dev)) |
6a812157 | 210 | goto err_add_mesh; |
51d84f50 | 211 | |
208fdd2f HS |
212 | priv->hw_register_dev = if_usb_register_dev; |
213 | priv->hw_unregister_dev = if_usb_unregister_dev; | |
214 | priv->hw_prog_firmware = if_usb_prog_firmware; | |
215 | priv->hw_host_to_card = if_usb_host_to_card; | |
216 | priv->hw_get_int_status = if_usb_get_int_status; | |
217 | priv->hw_read_event_cause = if_usb_read_event_cause; | |
218 | ||
084708b6 | 219 | if (libertas_activate_card(priv, libertas_fw_name)) |
6a812157 | 220 | goto err_activate_card; |
32a74b7c | 221 | |
435a1acb | 222 | list_add_tail(&cardp->list, &usb_devices); |
3874d0fe | 223 | |
876c9d3a | 224 | usb_get_dev(udev); |
435a1acb | 225 | usb_set_intfdata(intf, cardp); |
876c9d3a | 226 | |
876c9d3a MT |
227 | return 0; |
228 | ||
6a812157 | 229 | err_activate_card: |
c7236831 | 230 | libertas_remove_mesh(priv); |
6a812157 | 231 | err_add_mesh: |
634b8f49 | 232 | free_netdev(priv->dev); |
6a812157 | 233 | kfree(priv->adapter); |
876c9d3a | 234 | dealloc: |
435a1acb | 235 | if_usb_free(cardp); |
876c9d3a MT |
236 | |
237 | error: | |
238 | return -ENOMEM; | |
239 | } | |
240 | ||
241 | /** | |
242 | * @brief free resource and cleanup | |
435a1acb | 243 | * @param intf USB interface structure |
876c9d3a MT |
244 | * @return N/A |
245 | */ | |
246 | static void if_usb_disconnect(struct usb_interface *intf) | |
247 | { | |
248 | struct usb_card_rec *cardp = usb_get_intfdata(intf); | |
249 | wlan_private *priv = (wlan_private *) cardp->priv; | |
250 | wlan_adapter *adapter = NULL; | |
251 | ||
252 | adapter = priv->adapter; | |
253 | ||
254 | /* | |
255 | * Update Surprise removed to TRUE | |
256 | */ | |
257 | adapter->surpriseremoved = 1; | |
258 | ||
435a1acb | 259 | list_del(&cardp->list); |
3874d0fe | 260 | |
876c9d3a | 261 | /* card is removed and we can call wlan_remove_card */ |
9012b28a | 262 | lbs_deb_usbd(&cardp->udev->dev, "call remove card\n"); |
084708b6 HS |
263 | libertas_remove_mesh(priv); |
264 | libertas_remove_card(priv); | |
876c9d3a MT |
265 | |
266 | /* Unlink and free urb */ | |
267 | if_usb_free(cardp); | |
268 | ||
269 | usb_set_intfdata(intf, NULL); | |
270 | usb_put_dev(interface_to_usbdev(intf)); | |
271 | ||
272 | return; | |
273 | } | |
274 | ||
275 | /** | |
276 | * @brief This function download FW | |
277 | * @param priv pointer to wlan_private | |
278 | * @return 0 | |
279 | */ | |
280 | static int if_prog_firmware(wlan_private * priv) | |
281 | { | |
634b8f49 | 282 | struct usb_card_rec *cardp = priv->card; |
876c9d3a MT |
283 | struct FWData *fwdata; |
284 | struct fwheader *fwheader; | |
285 | u8 *firmware = priv->firmware->data; | |
286 | ||
287 | fwdata = kmalloc(sizeof(struct FWData), GFP_ATOMIC); | |
288 | ||
289 | if (!fwdata) | |
290 | return -1; | |
291 | ||
292 | fwheader = &fwdata->fwheader; | |
293 | ||
294 | if (!cardp->CRC_OK) { | |
295 | cardp->totalbytes = cardp->fwlastblksent; | |
296 | cardp->fwseqnum = cardp->lastseqnum - 1; | |
297 | } | |
298 | ||
9012b28a HS |
299 | /* |
300 | lbs_deb_usbd(&cardp->udev->dev, "totalbytes = %d\n", | |
876c9d3a | 301 | cardp->totalbytes); |
9012b28a | 302 | */ |
876c9d3a MT |
303 | |
304 | memcpy(fwheader, &firmware[cardp->totalbytes], | |
305 | sizeof(struct fwheader)); | |
306 | ||
307 | cardp->fwlastblksent = cardp->totalbytes; | |
308 | cardp->totalbytes += sizeof(struct fwheader); | |
309 | ||
9012b28a | 310 | /* lbs_deb_usbd(&cardp->udev->dev,"Copy Data\n"); */ |
876c9d3a | 311 | memcpy(fwdata->data, &firmware[cardp->totalbytes], |
981f187b | 312 | le32_to_cpu(fwdata->fwheader.datalength)); |
876c9d3a | 313 | |
9012b28a HS |
314 | /* |
315 | lbs_deb_usbd(&cardp->udev->dev, | |
bb793e2b | 316 | "Data length = %d\n", le32_to_cpu(fwdata->fwheader.datalength)); |
9012b28a | 317 | */ |
876c9d3a MT |
318 | |
319 | cardp->fwseqnum = cardp->fwseqnum + 1; | |
320 | ||
981f187b DW |
321 | fwdata->seqnum = cpu_to_le32(cardp->fwseqnum); |
322 | cardp->lastseqnum = cardp->fwseqnum; | |
323 | cardp->totalbytes += le32_to_cpu(fwdata->fwheader.datalength); | |
876c9d3a | 324 | |
981f187b | 325 | if (fwheader->dnldcmd == cpu_to_le32(FW_HAS_DATA_TO_RECV)) { |
9012b28a | 326 | /* |
981f187b | 327 | lbs_deb_usbd(&cardp->udev->dev, "There are data to follow\n"); |
9012b28a | 328 | lbs_deb_usbd(&cardp->udev->dev, |
876c9d3a MT |
329 | "seqnum = %d totalbytes = %d\n", cardp->fwseqnum, |
330 | cardp->totalbytes); | |
9012b28a | 331 | */ |
876c9d3a MT |
332 | memcpy(cardp->bulk_out_buffer, fwheader, FW_DATA_XMIT_SIZE); |
333 | usb_tx_block(priv, cardp->bulk_out_buffer, FW_DATA_XMIT_SIZE); | |
334 | ||
bb793e2b | 335 | } else if (fwdata->fwheader.dnldcmd == cpu_to_le32(FW_HAS_LAST_BLOCK)) { |
9012b28a HS |
336 | /* |
337 | lbs_deb_usbd(&cardp->udev->dev, | |
876c9d3a | 338 | "Host has finished FW downloading\n"); |
9012b28a | 339 | lbs_deb_usbd(&cardp->udev->dev, |
876c9d3a | 340 | "Donwloading FW JUMP BLOCK\n"); |
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 | cardp->fwfinalblk = 1; | |
345 | } | |
346 | ||
9012b28a HS |
347 | /* |
348 | lbs_deb_usbd(&cardp->udev->dev, | |
876c9d3a MT |
349 | "The firmware download is done size is %d\n", |
350 | cardp->totalbytes); | |
9012b28a | 351 | */ |
876c9d3a MT |
352 | |
353 | kfree(fwdata); | |
354 | ||
355 | return 0; | |
356 | } | |
357 | ||
358 | static int libertas_do_reset(wlan_private *priv) | |
359 | { | |
360 | int ret; | |
634b8f49 | 361 | struct usb_card_rec *cardp = priv->card; |
876c9d3a | 362 | |
3874d0fe HS |
363 | lbs_deb_enter(LBS_DEB_USB); |
364 | ||
876c9d3a MT |
365 | ret = usb_reset_device(cardp->udev); |
366 | if (!ret) { | |
367 | msleep(10); | |
435a1acb | 368 | if_usb_reset_device(priv); |
876c9d3a MT |
369 | msleep(10); |
370 | } | |
3874d0fe HS |
371 | |
372 | lbs_deb_leave_args(LBS_DEB_USB, "ret %d", ret); | |
373 | ||
876c9d3a MT |
374 | return ret; |
375 | } | |
376 | ||
377 | /** | |
378 | * @brief This function transfer the data to the device. | |
379 | * @param priv pointer to wlan_private | |
380 | * @param payload pointer to payload data | |
381 | * @param nb data length | |
382 | * @return 0 or -1 | |
383 | */ | |
384 | int usb_tx_block(wlan_private * priv, u8 * payload, u16 nb) | |
385 | { | |
386 | /* pointer to card structure */ | |
634b8f49 | 387 | struct usb_card_rec *cardp = priv->card; |
876c9d3a MT |
388 | int ret = -1; |
389 | ||
390 | /* check if device is removed */ | |
391 | if (priv->adapter->surpriseremoved) { | |
9012b28a | 392 | lbs_deb_usbd(&cardp->udev->dev, "Device removed\n"); |
876c9d3a MT |
393 | goto tx_ret; |
394 | } | |
395 | ||
396 | usb_fill_bulk_urb(cardp->tx_urb, cardp->udev, | |
397 | usb_sndbulkpipe(cardp->udev, | |
398 | cardp->bulk_out_endpointAddr), | |
399 | payload, nb, if_usb_write_bulk_callback, priv); | |
400 | ||
401 | cardp->tx_urb->transfer_flags |= URB_ZERO_PACKET; | |
402 | ||
403 | if ((ret = usb_submit_urb(cardp->tx_urb, GFP_ATOMIC))) { | |
404 | /* transfer failed */ | |
9012b28a | 405 | lbs_deb_usbd(&cardp->udev->dev, "usb_submit_urb failed\n"); |
876c9d3a MT |
406 | ret = -1; |
407 | } else { | |
9012b28a | 408 | /* lbs_deb_usbd(&cardp->udev->dev, "usb_submit_urb success\n"); */ |
876c9d3a MT |
409 | ret = 0; |
410 | } | |
411 | ||
412 | tx_ret: | |
413 | return ret; | |
414 | } | |
415 | ||
416 | static int __if_usb_submit_rx_urb(wlan_private * priv, | |
417 | void (*callbackfn) | |
418 | (struct urb *urb)) | |
419 | { | |
634b8f49 | 420 | struct usb_card_rec *cardp = priv->card; |
876c9d3a MT |
421 | struct sk_buff *skb; |
422 | struct read_cb_info *rinfo = &cardp->rinfo; | |
423 | int ret = -1; | |
424 | ||
425 | if (!(skb = dev_alloc_skb(MRVDRV_ETH_RX_PACKET_BUFFER_SIZE))) { | |
426 | lbs_pr_err("No free skb\n"); | |
427 | goto rx_ret; | |
428 | } | |
429 | ||
430 | rinfo->skb = skb; | |
431 | ||
432 | /* Fill the receive configuration URB and initialise the Rx call back */ | |
433 | usb_fill_bulk_urb(cardp->rx_urb, cardp->udev, | |
434 | usb_rcvbulkpipe(cardp->udev, | |
435 | cardp->bulk_in_endpointAddr), | |
4269e2ad | 436 | (void *) (skb->tail + (size_t) IPFIELD_ALIGN_OFFSET), |
876c9d3a MT |
437 | MRVDRV_ETH_RX_PACKET_BUFFER_SIZE, callbackfn, |
438 | rinfo); | |
439 | ||
440 | cardp->rx_urb->transfer_flags |= URB_ZERO_PACKET; | |
441 | ||
9012b28a | 442 | /* lbs_deb_usbd(&cardp->udev->dev, "Pointer for rx_urb %p\n", cardp->rx_urb); */ |
876c9d3a MT |
443 | if ((ret = usb_submit_urb(cardp->rx_urb, GFP_ATOMIC))) { |
444 | /* handle failure conditions */ | |
9012b28a | 445 | lbs_deb_usbd(&cardp->udev->dev, "Submit Rx URB failed\n"); |
876c9d3a MT |
446 | ret = -1; |
447 | } else { | |
9012b28a | 448 | /* lbs_deb_usbd(&cardp->udev->dev, "Submit Rx URB success\n"); */ |
876c9d3a MT |
449 | ret = 0; |
450 | } | |
451 | ||
452 | rx_ret: | |
453 | return ret; | |
454 | } | |
455 | ||
456 | static inline int if_usb_submit_rx_urb_fwload(wlan_private * priv) | |
457 | { | |
458 | return __if_usb_submit_rx_urb(priv, &if_usb_receive_fwload); | |
459 | } | |
460 | ||
461 | static inline int if_usb_submit_rx_urb(wlan_private * priv) | |
462 | { | |
463 | return __if_usb_submit_rx_urb(priv, &if_usb_receive); | |
464 | } | |
465 | ||
466 | static void if_usb_receive_fwload(struct urb *urb) | |
467 | { | |
468 | struct read_cb_info *rinfo = (struct read_cb_info *)urb->context; | |
469 | wlan_private *priv = rinfo->priv; | |
470 | struct sk_buff *skb = rinfo->skb; | |
634b8f49 | 471 | struct usb_card_rec *cardp = (struct usb_card_rec *)priv->card; |
876c9d3a MT |
472 | struct fwsyncheader *syncfwheader; |
473 | struct bootcmdrespStr bootcmdresp; | |
474 | ||
475 | if (urb->status) { | |
9012b28a | 476 | lbs_deb_usbd(&cardp->udev->dev, |
876c9d3a MT |
477 | "URB status is failed during fw load\n"); |
478 | kfree_skb(skb); | |
479 | return; | |
480 | } | |
481 | ||
482 | if (cardp->bootcmdresp == 0) { | |
483 | memcpy (&bootcmdresp, skb->data + IPFIELD_ALIGN_OFFSET, | |
484 | sizeof(bootcmdresp)); | |
981f187b | 485 | if (le16_to_cpu(cardp->udev->descriptor.bcdDevice) < 0x3106) { |
876c9d3a MT |
486 | kfree_skb(skb); |
487 | if_usb_submit_rx_urb_fwload(priv); | |
488 | cardp->bootcmdresp = 1; | |
9012b28a | 489 | lbs_deb_usbd(&cardp->udev->dev, |
876c9d3a MT |
490 | "Received valid boot command response\n"); |
491 | return; | |
492 | } | |
981f187b | 493 | if (bootcmdresp.u32magicnumber != cpu_to_le32(BOOT_CMD_MAGIC_NUMBER)) { |
876c9d3a MT |
494 | lbs_pr_info( |
495 | "boot cmd response wrong magic number (0x%x)\n", | |
981f187b | 496 | le32_to_cpu(bootcmdresp.u32magicnumber)); |
876c9d3a MT |
497 | } else if (bootcmdresp.u8cmd_tag != BOOT_CMD_FW_BY_USB) { |
498 | lbs_pr_info( | |
499 | "boot cmd response cmd_tag error (%d)\n", | |
500 | bootcmdresp.u8cmd_tag); | |
501 | } else if (bootcmdresp.u8result != BOOT_CMD_RESP_OK) { | |
502 | lbs_pr_info( | |
503 | "boot cmd response result error (%d)\n", | |
504 | bootcmdresp.u8result); | |
505 | } else { | |
506 | cardp->bootcmdresp = 1; | |
9012b28a | 507 | lbs_deb_usbd(&cardp->udev->dev, |
876c9d3a MT |
508 | "Received valid boot command response\n"); |
509 | } | |
510 | kfree_skb(skb); | |
511 | if_usb_submit_rx_urb_fwload(priv); | |
512 | return; | |
513 | } | |
514 | ||
515 | syncfwheader = kmalloc(sizeof(struct fwsyncheader), GFP_ATOMIC); | |
516 | if (!syncfwheader) { | |
9012b28a | 517 | lbs_deb_usbd(&cardp->udev->dev, "Failure to allocate syncfwheader\n"); |
876c9d3a MT |
518 | kfree_skb(skb); |
519 | return; | |
520 | } | |
521 | ||
522 | memcpy(syncfwheader, skb->data + IPFIELD_ALIGN_OFFSET, | |
523 | sizeof(struct fwsyncheader)); | |
524 | ||
525 | if (!syncfwheader->cmd) { | |
9012b28a HS |
526 | /* |
527 | lbs_deb_usbd(&cardp->udev->dev, | |
876c9d3a | 528 | "FW received Blk with correct CRC\n"); |
9012b28a | 529 | lbs_deb_usbd(&cardp->udev->dev, |
876c9d3a MT |
530 | "FW received Blk seqnum = %d\n", |
531 | syncfwheader->seqnum); | |
9012b28a | 532 | */ |
876c9d3a MT |
533 | cardp->CRC_OK = 1; |
534 | } else { | |
9012b28a | 535 | lbs_deb_usbd(&cardp->udev->dev, |
876c9d3a MT |
536 | "FW received Blk with CRC error\n"); |
537 | cardp->CRC_OK = 0; | |
538 | } | |
539 | ||
540 | kfree_skb(skb); | |
541 | ||
542 | if (cardp->fwfinalblk) { | |
543 | cardp->fwdnldover = 1; | |
544 | goto exit; | |
545 | } | |
546 | ||
547 | if_prog_firmware(priv); | |
548 | ||
549 | if_usb_submit_rx_urb_fwload(priv); | |
550 | exit: | |
551 | kfree(syncfwheader); | |
552 | ||
553 | return; | |
554 | ||
555 | } | |
556 | ||
557 | #define MRVDRV_MIN_PKT_LEN 30 | |
558 | ||
559 | static inline void process_cmdtypedata(int recvlength, struct sk_buff *skb, | |
560 | struct usb_card_rec *cardp, | |
561 | wlan_private *priv) | |
562 | { | |
563 | if (recvlength > MRVDRV_ETH_RX_PACKET_BUFFER_SIZE + | |
564 | MESSAGE_HEADER_LEN || recvlength < MRVDRV_MIN_PKT_LEN) { | |
9012b28a | 565 | lbs_deb_usbd(&cardp->udev->dev, |
876c9d3a MT |
566 | "Packet length is Invalid\n"); |
567 | kfree_skb(skb); | |
568 | return; | |
569 | } | |
570 | ||
571 | skb_reserve(skb, IPFIELD_ALIGN_OFFSET); | |
572 | skb_put(skb, recvlength); | |
573 | skb_pull(skb, MESSAGE_HEADER_LEN); | |
574 | libertas_process_rxed_packet(priv, skb); | |
634b8f49 | 575 | priv->upld_len = (recvlength - MESSAGE_HEADER_LEN); |
876c9d3a MT |
576 | } |
577 | ||
578 | static inline void process_cmdrequest(int recvlength, u8 *recvbuff, | |
579 | struct sk_buff *skb, | |
580 | struct usb_card_rec *cardp, | |
581 | wlan_private *priv) | |
582 | { | |
583 | u8 *cmdbuf; | |
584 | if (recvlength > MRVDRV_SIZE_OF_CMD_BUFFER) { | |
9012b28a | 585 | lbs_deb_usbd(&cardp->udev->dev, |
876c9d3a MT |
586 | "The receive buffer is too large\n"); |
587 | kfree_skb(skb); | |
588 | return; | |
589 | } | |
590 | ||
591 | if (!in_interrupt()) | |
592 | BUG(); | |
593 | ||
594 | spin_lock(&priv->adapter->driver_lock); | |
595 | /* take care of cur_cmd = NULL case by reading the | |
596 | * data to clear the interrupt */ | |
597 | if (!priv->adapter->cur_cmd) { | |
634b8f49 | 598 | cmdbuf = priv->upld_buf; |
876c9d3a MT |
599 | priv->adapter->hisregcpy &= ~his_cmdupldrdy; |
600 | } else | |
601 | cmdbuf = priv->adapter->cur_cmd->bufvirtualaddr; | |
602 | ||
603 | cardp->usb_int_cause |= his_cmdupldrdy; | |
634b8f49 | 604 | priv->upld_len = (recvlength - MESSAGE_HEADER_LEN); |
876c9d3a | 605 | memcpy(cmdbuf, recvbuff + MESSAGE_HEADER_LEN, |
634b8f49 | 606 | priv->upld_len); |
876c9d3a MT |
607 | |
608 | kfree_skb(skb); | |
634b8f49 | 609 | libertas_interrupt(priv->dev); |
876c9d3a MT |
610 | spin_unlock(&priv->adapter->driver_lock); |
611 | ||
9012b28a | 612 | lbs_deb_usbd(&cardp->udev->dev, |
876c9d3a MT |
613 | "Wake up main thread to handle cmd response\n"); |
614 | ||
615 | return; | |
616 | } | |
617 | ||
618 | /** | |
619 | * @brief This function reads of the packet into the upload buff, | |
620 | * wake up the main thread and initialise the Rx callack. | |
621 | * | |
622 | * @param urb pointer to struct urb | |
623 | * @return N/A | |
624 | */ | |
625 | static void if_usb_receive(struct urb *urb) | |
626 | { | |
627 | struct read_cb_info *rinfo = (struct read_cb_info *)urb->context; | |
628 | wlan_private *priv = rinfo->priv; | |
629 | struct sk_buff *skb = rinfo->skb; | |
634b8f49 | 630 | struct usb_card_rec *cardp = (struct usb_card_rec *)priv->card; |
876c9d3a MT |
631 | |
632 | int recvlength = urb->actual_length; | |
633 | u8 *recvbuff = NULL; | |
634 | u32 recvtype; | |
635 | ||
9012b28a | 636 | lbs_deb_enter(LBS_DEB_USB); |
876c9d3a MT |
637 | |
638 | if (recvlength) { | |
639 | if (urb->status) { | |
9012b28a | 640 | lbs_deb_usbd(&cardp->udev->dev, |
876c9d3a MT |
641 | "URB status is failed\n"); |
642 | kfree_skb(skb); | |
643 | goto setup_for_next; | |
644 | } | |
645 | ||
646 | recvbuff = skb->data + IPFIELD_ALIGN_OFFSET; | |
647 | memcpy(&recvtype, recvbuff, sizeof(u32)); | |
9012b28a | 648 | lbs_deb_usbd(&cardp->udev->dev, |
876c9d3a | 649 | "Recv length = 0x%x\n", recvlength); |
9012b28a | 650 | lbs_deb_usbd(&cardp->udev->dev, |
876c9d3a MT |
651 | "Receive type = 0x%X\n", recvtype); |
652 | recvtype = le32_to_cpu(recvtype); | |
9012b28a | 653 | lbs_deb_usbd(&cardp->udev->dev, |
876c9d3a MT |
654 | "Receive type after = 0x%X\n", recvtype); |
655 | } else if (urb->status) | |
656 | goto rx_exit; | |
657 | ||
658 | ||
659 | switch (recvtype) { | |
660 | case CMD_TYPE_DATA: | |
661 | process_cmdtypedata(recvlength, skb, cardp, priv); | |
662 | break; | |
663 | ||
664 | case CMD_TYPE_REQUEST: | |
665 | process_cmdrequest(recvlength, recvbuff, skb, cardp, priv); | |
666 | break; | |
667 | ||
668 | case CMD_TYPE_INDICATION: | |
669 | /* Event cause handling */ | |
670 | spin_lock(&priv->adapter->driver_lock); | |
981f187b | 671 | cardp->usb_event_cause = le32_to_cpu(*(__le32 *) (recvbuff + MESSAGE_HEADER_LEN)); |
9012b28a | 672 | lbs_deb_usbd(&cardp->udev->dev,"**EVENT** 0x%X\n", |
876c9d3a MT |
673 | cardp->usb_event_cause); |
674 | if (cardp->usb_event_cause & 0xffff0000) { | |
675 | libertas_send_tx_feedback(priv); | |
12a4d265 | 676 | spin_unlock(&priv->adapter->driver_lock); |
876c9d3a MT |
677 | break; |
678 | } | |
981f187b | 679 | cardp->usb_event_cause <<= 3; |
876c9d3a MT |
680 | cardp->usb_int_cause |= his_cardevent; |
681 | kfree_skb(skb); | |
634b8f49 | 682 | libertas_interrupt(priv->dev); |
876c9d3a MT |
683 | spin_unlock(&priv->adapter->driver_lock); |
684 | goto rx_exit; | |
685 | default: | |
686 | kfree_skb(skb); | |
687 | break; | |
688 | } | |
689 | ||
690 | setup_for_next: | |
691 | if_usb_submit_rx_urb(priv); | |
692 | rx_exit: | |
9012b28a | 693 | lbs_deb_leave(LBS_DEB_USB); |
876c9d3a MT |
694 | } |
695 | ||
696 | /** | |
697 | * @brief This function downloads data to FW | |
698 | * @param priv pointer to wlan_private structure | |
699 | * @param type type of data | |
700 | * @param buf pointer to data buffer | |
701 | * @param len number of bytes | |
702 | * @return 0 or -1 | |
703 | */ | |
208fdd2f | 704 | static int if_usb_host_to_card(wlan_private * priv, u8 type, u8 * payload, u16 nb) |
876c9d3a MT |
705 | { |
706 | int ret = -1; | |
707 | u32 tmp; | |
634b8f49 | 708 | struct usb_card_rec *cardp = (struct usb_card_rec *)priv->card; |
876c9d3a | 709 | |
9012b28a HS |
710 | lbs_deb_usbd(&cardp->udev->dev,"*** type = %u\n", type); |
711 | lbs_deb_usbd(&cardp->udev->dev,"size after = %d\n", nb); | |
876c9d3a MT |
712 | |
713 | if (type == MVMS_CMD) { | |
714 | tmp = cpu_to_le32(CMD_TYPE_REQUEST); | |
634b8f49 | 715 | priv->dnld_sent = DNLD_CMD_SENT; |
876c9d3a MT |
716 | memcpy(cardp->bulk_out_buffer, (u8 *) & tmp, |
717 | MESSAGE_HEADER_LEN); | |
718 | ||
719 | } else { | |
720 | tmp = cpu_to_le32(CMD_TYPE_DATA); | |
634b8f49 | 721 | priv->dnld_sent = DNLD_DATA_SENT; |
876c9d3a MT |
722 | memcpy(cardp->bulk_out_buffer, (u8 *) & tmp, |
723 | MESSAGE_HEADER_LEN); | |
724 | } | |
725 | ||
726 | memcpy((cardp->bulk_out_buffer + MESSAGE_HEADER_LEN), payload, nb); | |
727 | ||
728 | ret = | |
729 | usb_tx_block(priv, cardp->bulk_out_buffer, nb + MESSAGE_HEADER_LEN); | |
730 | ||
731 | return ret; | |
732 | } | |
733 | ||
734 | /* called with adapter->driver_lock held */ | |
208fdd2f | 735 | static int if_usb_get_int_status(wlan_private * priv, u8 * ireg) |
876c9d3a | 736 | { |
634b8f49 | 737 | struct usb_card_rec *cardp = priv->card; |
876c9d3a MT |
738 | |
739 | *ireg = cardp->usb_int_cause; | |
740 | cardp->usb_int_cause = 0; | |
741 | ||
9012b28a | 742 | lbs_deb_usbd(&cardp->udev->dev,"Int cause is 0x%X\n", *ireg); |
876c9d3a MT |
743 | |
744 | return 0; | |
745 | } | |
746 | ||
208fdd2f | 747 | static int if_usb_read_event_cause(wlan_private * priv) |
876c9d3a | 748 | { |
634b8f49 | 749 | struct usb_card_rec *cardp = priv->card; |
876c9d3a MT |
750 | priv->adapter->eventcause = cardp->usb_event_cause; |
751 | /* Re-submit rx urb here to avoid event lost issue */ | |
752 | if_usb_submit_rx_urb(priv); | |
753 | return 0; | |
754 | } | |
755 | ||
435a1acb | 756 | static int if_usb_reset_device(wlan_private *priv) |
876c9d3a MT |
757 | { |
758 | int ret; | |
759 | ||
3874d0fe | 760 | lbs_deb_enter(LBS_DEB_USB); |
876c9d3a MT |
761 | ret = libertas_prepare_and_send_command(priv, cmd_802_11_reset, |
762 | cmd_act_halt, 0, 0, NULL); | |
763 | msleep_interruptible(10); | |
764 | ||
3874d0fe | 765 | lbs_deb_leave_args(LBS_DEB_USB, "ret %d", ret); |
876c9d3a MT |
766 | return ret; |
767 | } | |
768 | ||
208fdd2f | 769 | static int if_usb_unregister_dev(wlan_private * priv) |
876c9d3a MT |
770 | { |
771 | int ret = 0; | |
772 | ||
773 | /* Need to send a Reset command to device before USB resources freed | |
774 | * and wlan_remove_card() called, then device can handle FW download | |
775 | * again. | |
776 | */ | |
777 | if (priv) | |
435a1acb | 778 | if_usb_reset_device(priv); |
876c9d3a MT |
779 | |
780 | return ret; | |
781 | } | |
782 | ||
783 | ||
784 | /** | |
785 | * @brief This function register usb device and initialize parameter | |
786 | * @param priv pointer to wlan_private | |
787 | * @return 0 or -1 | |
788 | */ | |
208fdd2f | 789 | static int if_usb_register_dev(wlan_private * priv) |
876c9d3a | 790 | { |
634b8f49 | 791 | struct usb_card_rec *cardp = (struct usb_card_rec *)priv->card; |
9012b28a HS |
792 | |
793 | lbs_deb_enter(LBS_DEB_USB); | |
876c9d3a MT |
794 | |
795 | cardp->priv = priv; | |
634b8f49 | 796 | cardp->eth_dev = priv->dev; |
876c9d3a MT |
797 | priv->hotplug_device = &(cardp->udev->dev); |
798 | ||
9012b28a | 799 | lbs_deb_usbd(&cardp->udev->dev, "udev pointer is at %p\n", |
876c9d3a MT |
800 | cardp->udev); |
801 | ||
9012b28a | 802 | lbs_deb_leave(LBS_DEB_USB); |
876c9d3a MT |
803 | return 0; |
804 | } | |
805 | ||
806 | ||
807 | ||
208fdd2f | 808 | static int if_usb_prog_firmware(wlan_private * priv) |
876c9d3a | 809 | { |
634b8f49 | 810 | struct usb_card_rec *cardp = priv->card; |
876c9d3a MT |
811 | int i = 0; |
812 | static int reset_count = 10; | |
9012b28a | 813 | int ret = 0; |
876c9d3a | 814 | |
9012b28a | 815 | lbs_deb_enter(LBS_DEB_USB); |
876c9d3a MT |
816 | |
817 | cardp->rinfo.priv = priv; | |
818 | ||
819 | restart: | |
820 | if (if_usb_submit_rx_urb_fwload(priv) < 0) { | |
9012b28a HS |
821 | lbs_deb_usbd(&cardp->udev->dev, "URB submission is failed\n"); |
822 | ret = -1; | |
823 | goto done; | |
876c9d3a MT |
824 | } |
825 | ||
876c9d3a MT |
826 | cardp->bootcmdresp = 0; |
827 | do { | |
828 | int j = 0; | |
829 | i++; | |
830 | /* Issue Boot command = 1, Boot from Download-FW */ | |
831 | if_usb_issue_boot_command(priv, BOOT_CMD_FW_BY_USB); | |
832 | /* wait for command response */ | |
833 | do { | |
834 | j++; | |
835 | msleep_interruptible(100); | |
836 | } while (cardp->bootcmdresp == 0 && j < 10); | |
837 | } while (cardp->bootcmdresp == 0 && i < 5); | |
838 | ||
839 | if (cardp->bootcmdresp == 0) { | |
840 | if (--reset_count >= 0) { | |
841 | libertas_do_reset(priv); | |
842 | goto restart; | |
843 | } | |
844 | return -1; | |
845 | } | |
876c9d3a MT |
846 | |
847 | i = 0; | |
848 | priv->adapter->fw_ready = 0; | |
849 | ||
850 | cardp->totalbytes = 0; | |
851 | cardp->fwlastblksent = 0; | |
852 | cardp->CRC_OK = 1; | |
853 | cardp->fwdnldover = 0; | |
854 | cardp->fwseqnum = -1; | |
855 | cardp->totalbytes = 0; | |
856 | cardp->fwfinalblk = 0; | |
857 | ||
858 | if_prog_firmware(priv); | |
859 | ||
860 | do { | |
9012b28a | 861 | lbs_deb_usbd(&cardp->udev->dev,"Wlan sched timeout\n"); |
876c9d3a MT |
862 | i++; |
863 | msleep_interruptible(100); | |
864 | if (priv->adapter->surpriseremoved || i >= 20) | |
865 | break; | |
866 | } while (!cardp->fwdnldover); | |
867 | ||
868 | if (!cardp->fwdnldover) { | |
869 | lbs_pr_info("failed to load fw, resetting device!\n"); | |
870 | if (--reset_count >= 0) { | |
871 | libertas_do_reset(priv); | |
872 | goto restart; | |
873 | } | |
874 | ||
875 | lbs_pr_info("FW download failure, time = %d ms\n", i * 100); | |
9012b28a HS |
876 | ret = -1; |
877 | goto done; | |
876c9d3a MT |
878 | } |
879 | ||
880 | if_usb_submit_rx_urb(priv); | |
881 | ||
882 | /* Delay 200 ms to waiting for the FW ready */ | |
883 | msleep_interruptible(200); | |
884 | ||
885 | priv->adapter->fw_ready = 1; | |
886 | ||
9012b28a HS |
887 | done: |
888 | lbs_deb_leave_args(LBS_DEB_USB, "ret %d", ret); | |
889 | return ret; | |
876c9d3a MT |
890 | } |
891 | ||
876c9d3a MT |
892 | #ifdef CONFIG_PM |
893 | static int if_usb_suspend(struct usb_interface *intf, pm_message_t message) | |
894 | { | |
895 | struct usb_card_rec *cardp = usb_get_intfdata(intf); | |
896 | wlan_private *priv = cardp->priv; | |
897 | ||
9012b28a | 898 | lbs_deb_enter(LBS_DEB_USB); |
876c9d3a MT |
899 | |
900 | if (priv->adapter->psstate != PS_STATE_FULL_POWER) | |
901 | return -1; | |
902 | ||
903 | netif_device_detach(cardp->eth_dev); | |
51d84f50 | 904 | netif_device_detach(priv->mesh_dev); |
876c9d3a MT |
905 | |
906 | /* Unlink tx & rx urb */ | |
907 | usb_kill_urb(cardp->tx_urb); | |
908 | usb_kill_urb(cardp->rx_urb); | |
909 | ||
910 | cardp->rx_urb_recall = 1; | |
911 | ||
9012b28a | 912 | lbs_deb_leave(LBS_DEB_USB); |
876c9d3a MT |
913 | return 0; |
914 | } | |
915 | ||
916 | static int if_usb_resume(struct usb_interface *intf) | |
917 | { | |
918 | struct usb_card_rec *cardp = usb_get_intfdata(intf); | |
51d84f50 | 919 | wlan_private *priv = cardp->priv; |
876c9d3a | 920 | |
9012b28a | 921 | lbs_deb_enter(LBS_DEB_USB); |
876c9d3a MT |
922 | |
923 | cardp->rx_urb_recall = 0; | |
924 | ||
925 | if_usb_submit_rx_urb(cardp->priv); | |
926 | ||
927 | netif_device_attach(cardp->eth_dev); | |
51d84f50 | 928 | netif_device_attach(priv->mesh_dev); |
876c9d3a | 929 | |
9012b28a | 930 | lbs_deb_leave(LBS_DEB_USB); |
876c9d3a MT |
931 | return 0; |
932 | } | |
933 | #else | |
934 | #define if_usb_suspend NULL | |
935 | #define if_usb_resume NULL | |
936 | #endif | |
937 | ||
938 | static struct usb_driver if_usb_driver = { | |
939 | /* driver name */ | |
940 | .name = usbdriver_name, | |
941 | /* probe function name */ | |
942 | .probe = if_usb_probe, | |
943 | /* disconnect function name */ | |
944 | .disconnect = if_usb_disconnect, | |
945 | /* device signature table */ | |
946 | .id_table = if_usb_table, | |
947 | .suspend = if_usb_suspend, | |
948 | .resume = if_usb_resume, | |
949 | }; | |
950 | ||
084708b6 | 951 | static int if_usb_init_module(void) |
876c9d3a | 952 | { |
084708b6 | 953 | int ret = 0; |
876c9d3a | 954 | |
084708b6 HS |
955 | lbs_deb_enter(LBS_DEB_MAIN); |
956 | ||
957 | if (libertas_fw_name == NULL) { | |
958 | libertas_fw_name = default_fw_name; | |
959 | } | |
960 | ||
961 | ret = usb_register(&if_usb_driver); | |
962 | ||
963 | lbs_deb_leave_args(LBS_DEB_MAIN, "ret %d", ret); | |
964 | return ret; | |
876c9d3a MT |
965 | } |
966 | ||
084708b6 | 967 | static void if_usb_exit_module(void) |
876c9d3a | 968 | { |
d43fb8ee | 969 | struct usb_card_rec *cardp, *cardp_temp; |
3874d0fe | 970 | |
084708b6 HS |
971 | lbs_deb_enter(LBS_DEB_MAIN); |
972 | ||
d43fb8ee | 973 | list_for_each_entry_safe(cardp, cardp_temp, &usb_devices, list) |
435a1acb | 974 | if_usb_reset_device((wlan_private *) cardp->priv); |
3874d0fe | 975 | |
876c9d3a MT |
976 | /* API unregisters the driver from USB subsystem */ |
977 | usb_deregister(&if_usb_driver); | |
084708b6 HS |
978 | |
979 | lbs_deb_leave(LBS_DEB_MAIN); | |
876c9d3a | 980 | } |
084708b6 HS |
981 | |
982 | module_init(if_usb_init_module); | |
983 | module_exit(if_usb_exit_module); | |
984 | ||
985 | MODULE_DESCRIPTION("8388 USB WLAN Driver"); | |
986 | MODULE_AUTHOR("Marvell International Ltd."); | |
987 | MODULE_LICENSE("GPL"); |