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> | |
8 | #include <linux/usb.h> | |
9 | ||
ec3eef28 HS |
10 | #define DRV_NAME "usb8xxx" |
11 | ||
876c9d3a | 12 | #include "host.h" |
876c9d3a MT |
13 | #include "decl.h" |
14 | #include "defs.h" | |
15 | #include "dev.h" | |
14e865ba | 16 | #include "cmd.h" |
876c9d3a MT |
17 | #include "if_usb.h" |
18 | ||
eae86bf3 DW |
19 | #define INSANEDEBUG 0 |
20 | #define lbs_deb_usb2(...) do { if (INSANEDEBUG) lbs_deb_usbd(__VA_ARGS__); } while (0) | |
21 | ||
876c9d3a MT |
22 | #define MESSAGE_HEADER_LEN 4 |
23 | ||
82209adc | 24 | static char *lbs_fw_name = "usb8388.bin"; |
10078321 | 25 | module_param_named(fw_name, lbs_fw_name, charp, 0644); |
084708b6 | 26 | |
876c9d3a MT |
27 | static struct usb_device_id if_usb_table[] = { |
28 | /* Enter the device signature inside */ | |
66fcc559 HS |
29 | { USB_DEVICE(0x1286, 0x2001) }, |
30 | { USB_DEVICE(0x05a3, 0x8388) }, | |
876c9d3a MT |
31 | {} /* Terminating entry */ |
32 | }; | |
33 | ||
34 | MODULE_DEVICE_TABLE(usb, if_usb_table); | |
35 | ||
36 | static void if_usb_receive(struct urb *urb); | |
37 | static void if_usb_receive_fwload(struct urb *urb); | |
eae86bf3 DW |
38 | static int if_usb_prog_firmware(struct if_usb_card *cardp); |
39 | static int if_usb_host_to_card(struct lbs_private *priv, uint8_t type, | |
40 | uint8_t *payload, uint16_t nb); | |
41 | static int if_usb_get_int_status(struct lbs_private *priv, uint8_t *); | |
69f9032d | 42 | static int if_usb_read_event_cause(struct lbs_private *); |
eae86bf3 DW |
43 | static int usb_tx_block(struct if_usb_card *cardp, uint8_t *payload, |
44 | uint16_t nb); | |
45 | static void if_usb_free(struct if_usb_card *cardp); | |
46 | static int if_usb_submit_rx_urb(struct if_usb_card *cardp); | |
47 | static int if_usb_reset_device(struct if_usb_card *cardp); | |
876c9d3a MT |
48 | |
49 | /** | |
50 | * @brief call back function to handle the status of the URB | |
51 | * @param urb pointer to urb structure | |
52 | * @return N/A | |
53 | */ | |
54 | static void if_usb_write_bulk_callback(struct urb *urb) | |
55 | { | |
eae86bf3 | 56 | struct if_usb_card *cardp = (struct if_usb_card *) urb->context; |
876c9d3a MT |
57 | |
58 | /* handle the transmission complete validations */ | |
59 | ||
954ee164 | 60 | if (urb->status == 0) { |
69f9032d | 61 | struct lbs_private *priv = cardp->priv; |
954ee164 | 62 | |
eae86bf3 DW |
63 | lbs_deb_usb2(&urb->dev->dev, "URB status is successful\n"); |
64 | lbs_deb_usb2(&urb->dev->dev, "Actual length transmitted %d\n", | |
65 | urb->actual_length); | |
954ee164 DW |
66 | |
67 | /* Used for both firmware TX and regular TX. priv isn't | |
68 | * valid at firmware load time. | |
69 | */ | |
e775ed7c DW |
70 | if (priv) |
71 | lbs_host_to_card_done(priv); | |
954ee164 DW |
72 | } else { |
73 | /* print the failure status number for debug */ | |
74 | lbs_pr_info("URB in failure status: %d\n", urb->status); | |
876c9d3a MT |
75 | } |
76 | ||
77 | return; | |
78 | } | |
79 | ||
80 | /** | |
81 | * @brief free tx/rx urb, skb and rx buffer | |
eae86bf3 | 82 | * @param cardp pointer if_usb_card |
876c9d3a MT |
83 | * @return N/A |
84 | */ | |
eae86bf3 | 85 | static void if_usb_free(struct if_usb_card *cardp) |
876c9d3a | 86 | { |
9012b28a | 87 | lbs_deb_enter(LBS_DEB_USB); |
876c9d3a MT |
88 | |
89 | /* Unlink tx & rx urb */ | |
90 | usb_kill_urb(cardp->tx_urb); | |
91 | usb_kill_urb(cardp->rx_urb); | |
92 | ||
93 | usb_free_urb(cardp->tx_urb); | |
94 | cardp->tx_urb = NULL; | |
95 | ||
96 | usb_free_urb(cardp->rx_urb); | |
97 | cardp->rx_urb = NULL; | |
98 | ||
eae86bf3 DW |
99 | kfree(cardp->ep_out_buf); |
100 | cardp->ep_out_buf = NULL; | |
876c9d3a | 101 | |
9012b28a | 102 | lbs_deb_leave(LBS_DEB_USB); |
876c9d3a MT |
103 | } |
104 | ||
04c80f1a DW |
105 | static void if_usb_set_boot2_ver(struct lbs_private *priv) |
106 | { | |
107 | struct cmd_ds_set_boot2_ver b2_cmd; | |
04c80f1a DW |
108 | |
109 | b2_cmd.action = 0; | |
c2df2efe | 110 | b2_cmd.version = priv->boot2_version; |
04c80f1a | 111 | |
b23b2061 | 112 | if (lbs_cmd_with_response(priv, CMD_SET_BOOT2_VER, &b2_cmd)) |
04c80f1a | 113 | lbs_deb_usb("Setting boot2 version failed\n"); |
04c80f1a DW |
114 | } |
115 | ||
2fd6cfe3 | 116 | static void if_usb_fw_timeo(unsigned long priv) |
4f82f5c8 | 117 | { |
eae86bf3 | 118 | struct if_usb_card *cardp = (void *)priv; |
04c80f1a | 119 | |
4f82f5c8 DW |
120 | if (cardp->fwdnldover) { |
121 | lbs_deb_usb("Download complete, no event. Assuming success\n"); | |
122 | } else { | |
123 | lbs_pr_err("Download timed out\n"); | |
124 | cardp->surprise_removed = 1; | |
125 | } | |
126 | wake_up(&cardp->fw_wq); | |
127 | } | |
eae86bf3 | 128 | |
876c9d3a MT |
129 | /** |
130 | * @brief sets the configuration values | |
131 | * @param ifnum interface number | |
132 | * @param id pointer to usb_device_id | |
133 | * @return 0 on success, error code on failure | |
134 | */ | |
135 | static int if_usb_probe(struct usb_interface *intf, | |
136 | const struct usb_device_id *id) | |
137 | { | |
138 | struct usb_device *udev; | |
139 | struct usb_host_interface *iface_desc; | |
140 | struct usb_endpoint_descriptor *endpoint; | |
69f9032d | 141 | struct lbs_private *priv; |
eae86bf3 | 142 | struct if_usb_card *cardp; |
876c9d3a MT |
143 | int i; |
144 | ||
145 | udev = interface_to_usbdev(intf); | |
146 | ||
eae86bf3 | 147 | cardp = kzalloc(sizeof(struct if_usb_card), GFP_KERNEL); |
435a1acb | 148 | if (!cardp) { |
876c9d3a MT |
149 | lbs_pr_err("Out of memory allocating private data.\n"); |
150 | goto error; | |
151 | } | |
152 | ||
4f82f5c8 DW |
153 | setup_timer(&cardp->fw_timeout, if_usb_fw_timeo, (unsigned long)cardp); |
154 | init_waitqueue_head(&cardp->fw_wq); | |
7e226272 | 155 | |
435a1acb | 156 | cardp->udev = udev; |
876c9d3a MT |
157 | iface_desc = intf->cur_altsetting; |
158 | ||
9012b28a | 159 | lbs_deb_usbd(&udev->dev, "bcdUSB = 0x%X bDeviceClass = 0x%X" |
eae86bf3 | 160 | " bDeviceSubClass = 0x%X, bDeviceProtocol = 0x%X\n", |
981f187b DW |
161 | le16_to_cpu(udev->descriptor.bcdUSB), |
162 | udev->descriptor.bDeviceClass, | |
163 | udev->descriptor.bDeviceSubClass, | |
164 | udev->descriptor.bDeviceProtocol); | |
876c9d3a MT |
165 | |
166 | for (i = 0; i < iface_desc->desc.bNumEndpoints; ++i) { | |
167 | endpoint = &iface_desc->endpoint[i].desc; | |
eae86bf3 DW |
168 | if (usb_endpoint_is_bulk_in(endpoint)) { |
169 | cardp->ep_in_size = le16_to_cpu(endpoint->wMaxPacketSize); | |
170 | cardp->ep_in = usb_endpoint_num(endpoint); | |
876c9d3a | 171 | |
eae86bf3 DW |
172 | lbs_deb_usbd(&udev->dev, "in_endpoint = %d\n", cardp->ep_in); |
173 | lbs_deb_usbd(&udev->dev, "Bulk in size is %d\n", cardp->ep_in_size); | |
876c9d3a | 174 | |
eae86bf3 DW |
175 | } else if (usb_endpoint_is_bulk_out(endpoint)) { |
176 | cardp->ep_out_size = le16_to_cpu(endpoint->wMaxPacketSize); | |
177 | cardp->ep_out = usb_endpoint_num(endpoint); | |
178 | ||
179 | lbs_deb_usbd(&udev->dev, "out_endpoint = %d\n", cardp->ep_out); | |
180 | lbs_deb_usbd(&udev->dev, "Bulk out size is %d\n", cardp->ep_out_size); | |
876c9d3a MT |
181 | } |
182 | } | |
eae86bf3 DW |
183 | if (!cardp->ep_out_size || !cardp->ep_in_size) { |
184 | lbs_deb_usbd(&udev->dev, "Endpoints not found\n"); | |
185 | goto dealloc; | |
186 | } | |
187 | if (!(cardp->rx_urb = usb_alloc_urb(0, GFP_KERNEL))) { | |
188 | lbs_deb_usbd(&udev->dev, "Rx URB allocation failed\n"); | |
189 | goto dealloc; | |
190 | } | |
191 | if (!(cardp->tx_urb = usb_alloc_urb(0, GFP_KERNEL))) { | |
192 | lbs_deb_usbd(&udev->dev, "Tx URB allocation failed\n"); | |
193 | goto dealloc; | |
194 | } | |
195 | cardp->ep_out_buf = kmalloc(MRVDRV_ETH_TX_PACKET_BUFFER_SIZE, GFP_KERNEL); | |
196 | if (!cardp->ep_out_buf) { | |
197 | lbs_deb_usbd(&udev->dev, "Could not allocate buffer\n"); | |
198 | goto dealloc; | |
199 | } | |
876c9d3a | 200 | |
954ee164 | 201 | /* Upload firmware */ |
954ee164 | 202 | if (if_usb_prog_firmware(cardp)) { |
23d36eec | 203 | lbs_deb_usbd(&udev->dev, "FW upload failed\n"); |
954ee164 DW |
204 | goto err_prog_firmware; |
205 | } | |
206 | ||
10078321 | 207 | if (!(priv = lbs_add_card(cardp, &udev->dev))) |
954ee164 | 208 | goto err_prog_firmware; |
3874d0fe | 209 | |
954ee164 | 210 | cardp->priv = priv; |
c9cd6f9d | 211 | cardp->priv->fw_ready = 1; |
965f8bbc | 212 | |
208fdd2f HS |
213 | priv->hw_host_to_card = if_usb_host_to_card; |
214 | priv->hw_get_int_status = if_usb_get_int_status; | |
215 | priv->hw_read_event_cause = if_usb_read_event_cause; | |
c2df2efe | 216 | priv->boot2_version = udev->descriptor.bcdDevice; |
208fdd2f | 217 | |
954ee164 | 218 | if_usb_submit_rx_urb(cardp); |
954ee164 | 219 | |
10078321 | 220 | if (lbs_start_card(priv)) |
954ee164 | 221 | goto err_start_card; |
32a74b7c | 222 | |
04c80f1a | 223 | if_usb_set_boot2_ver(priv); |
2c94404c | 224 | |
506e9025 DW |
225 | priv->wol_gpio = 2; /* Wake via GPIO2... */ |
226 | priv->wol_gap = 20; /* ... after 20ms */ | |
227 | lbs_host_sleep_cfg(priv, EHS_WAKE_ON_UNICAST_DATA); | |
d1f7a5b8 | 228 | |
876c9d3a | 229 | usb_get_dev(udev); |
435a1acb | 230 | usb_set_intfdata(intf, cardp); |
876c9d3a | 231 | |
876c9d3a MT |
232 | return 0; |
233 | ||
954ee164 | 234 | err_start_card: |
10078321 | 235 | lbs_remove_card(priv); |
954ee164 DW |
236 | err_prog_firmware: |
237 | if_usb_reset_device(cardp); | |
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 | { | |
eae86bf3 | 252 | struct if_usb_card *cardp = usb_get_intfdata(intf); |
69f9032d | 253 | struct lbs_private *priv = (struct lbs_private *) cardp->priv; |
876c9d3a | 254 | |
954ee164 | 255 | lbs_deb_enter(LBS_DEB_MAIN); |
876c9d3a | 256 | |
954ee164 | 257 | cardp->surprise_removed = 1; |
876c9d3a | 258 | |
954ee164 | 259 | if (priv) { |
aa21c004 | 260 | priv->surpriseremoved = 1; |
10078321 | 261 | lbs_stop_card(priv); |
10078321 | 262 | lbs_remove_card(priv); |
954ee164 | 263 | } |
876c9d3a MT |
264 | |
265 | /* Unlink and free urb */ | |
266 | if_usb_free(cardp); | |
267 | ||
268 | usb_set_intfdata(intf, NULL); | |
269 | usb_put_dev(interface_to_usbdev(intf)); | |
270 | ||
954ee164 | 271 | lbs_deb_leave(LBS_DEB_MAIN); |
876c9d3a MT |
272 | } |
273 | ||
274 | /** | |
275 | * @brief This function download FW | |
69f9032d | 276 | * @param priv pointer to struct lbs_private |
876c9d3a MT |
277 | * @return 0 |
278 | */ | |
eae86bf3 | 279 | static int if_usb_send_fw_pkt(struct if_usb_card *cardp) |
876c9d3a | 280 | { |
eae86bf3 DW |
281 | struct fwdata *fwdata = cardp->ep_out_buf; |
282 | uint8_t *firmware = cardp->fw->data; | |
876c9d3a | 283 | |
eae86bf3 DW |
284 | /* If we got a CRC failure on the last block, back |
285 | up and retry it */ | |
876c9d3a MT |
286 | if (!cardp->CRC_OK) { |
287 | cardp->totalbytes = cardp->fwlastblksent; | |
eae86bf3 | 288 | cardp->fwseqnum--; |
876c9d3a MT |
289 | } |
290 | ||
eae86bf3 DW |
291 | lbs_deb_usb2(&cardp->udev->dev, "totalbytes = %d\n", |
292 | cardp->totalbytes); | |
876c9d3a | 293 | |
eae86bf3 DW |
294 | /* struct fwdata (which we sent to the card) has an |
295 | extra __le32 field in between the header and the data, | |
296 | which is not in the struct fwheader in the actual | |
297 | firmware binary. Insert the seqnum in the middle... */ | |
298 | memcpy(&fwdata->hdr, &firmware[cardp->totalbytes], | |
876c9d3a MT |
299 | sizeof(struct fwheader)); |
300 | ||
301 | cardp->fwlastblksent = cardp->totalbytes; | |
302 | cardp->totalbytes += sizeof(struct fwheader); | |
303 | ||
876c9d3a | 304 | memcpy(fwdata->data, &firmware[cardp->totalbytes], |
eae86bf3 | 305 | le32_to_cpu(fwdata->hdr.datalength)); |
876c9d3a | 306 | |
eae86bf3 DW |
307 | lbs_deb_usb2(&cardp->udev->dev, "Data length = %d\n", |
308 | le32_to_cpu(fwdata->hdr.datalength)); | |
876c9d3a | 309 | |
eae86bf3 DW |
310 | fwdata->seqnum = cpu_to_le32(++cardp->fwseqnum); |
311 | cardp->totalbytes += le32_to_cpu(fwdata->hdr.datalength); | |
876c9d3a | 312 | |
eae86bf3 DW |
313 | usb_tx_block(cardp, cardp->ep_out_buf, sizeof(struct fwdata) + |
314 | le32_to_cpu(fwdata->hdr.datalength)); | |
315 | ||
316 | if (fwdata->hdr.dnldcmd == cpu_to_le32(FW_HAS_DATA_TO_RECV)) { | |
317 | lbs_deb_usb2(&cardp->udev->dev, "There are data to follow\n"); | |
318 | lbs_deb_usb2(&cardp->udev->dev, "seqnum = %d totalbytes = %d\n", | |
319 | cardp->fwseqnum, cardp->totalbytes); | |
320 | } else if (fwdata->hdr.dnldcmd == cpu_to_le32(FW_HAS_LAST_BLOCK)) { | |
321 | lbs_deb_usb2(&cardp->udev->dev, "Host has finished FW downloading\n"); | |
322 | lbs_deb_usb2(&cardp->udev->dev, "Donwloading FW JUMP BLOCK\n"); | |
876c9d3a | 323 | |
876c9d3a MT |
324 | cardp->fwfinalblk = 1; |
325 | } | |
326 | ||
eae86bf3 DW |
327 | lbs_deb_usb2(&cardp->udev->dev, "Firmware download done; size %d\n", |
328 | cardp->totalbytes); | |
876c9d3a MT |
329 | |
330 | return 0; | |
331 | } | |
332 | ||
eae86bf3 | 333 | static int if_usb_reset_device(struct if_usb_card *cardp) |
876c9d3a | 334 | { |
eae86bf3 | 335 | struct cmd_ds_command *cmd = cardp->ep_out_buf + 4; |
876c9d3a | 336 | int ret; |
876c9d3a | 337 | |
3874d0fe HS |
338 | lbs_deb_enter(LBS_DEB_USB); |
339 | ||
eae86bf3 | 340 | *(__le32 *)cardp->ep_out_buf = cpu_to_le32(CMD_TYPE_REQUEST); |
6d35fdfc DW |
341 | |
342 | cmd->command = cpu_to_le16(CMD_802_11_RESET); | |
343 | cmd->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_reset) + S_DS_GEN); | |
344 | cmd->result = cpu_to_le16(0); | |
345 | cmd->seqnum = cpu_to_le16(0x5a5a); | |
346 | cmd->params.reset.action = cpu_to_le16(CMD_ACT_HALT); | |
eae86bf3 | 347 | usb_tx_block(cardp, cardp->ep_out_buf, 4 + S_DS_GEN + sizeof(struct cmd_ds_802_11_reset)); |
6d35fdfc | 348 | |
c8ba39d0 | 349 | msleep(100); |
876c9d3a | 350 | ret = usb_reset_device(cardp->udev); |
c8ba39d0 | 351 | msleep(100); |
3874d0fe HS |
352 | |
353 | lbs_deb_leave_args(LBS_DEB_USB, "ret %d", ret); | |
354 | ||
876c9d3a MT |
355 | return ret; |
356 | } | |
357 | ||
358 | /** | |
359 | * @brief This function transfer the data to the device. | |
69f9032d | 360 | * @param priv pointer to struct lbs_private |
876c9d3a MT |
361 | * @param payload pointer to payload data |
362 | * @param nb data length | |
363 | * @return 0 or -1 | |
364 | */ | |
eae86bf3 | 365 | static int usb_tx_block(struct if_usb_card *cardp, uint8_t *payload, uint16_t nb) |
876c9d3a | 366 | { |
876c9d3a MT |
367 | int ret = -1; |
368 | ||
369 | /* check if device is removed */ | |
954ee164 | 370 | if (cardp->surprise_removed) { |
9012b28a | 371 | lbs_deb_usbd(&cardp->udev->dev, "Device removed\n"); |
876c9d3a MT |
372 | goto tx_ret; |
373 | } | |
374 | ||
375 | usb_fill_bulk_urb(cardp->tx_urb, cardp->udev, | |
376 | usb_sndbulkpipe(cardp->udev, | |
eae86bf3 | 377 | cardp->ep_out), |
954ee164 | 378 | payload, nb, if_usb_write_bulk_callback, cardp); |
876c9d3a MT |
379 | |
380 | cardp->tx_urb->transfer_flags |= URB_ZERO_PACKET; | |
381 | ||
382 | if ((ret = usb_submit_urb(cardp->tx_urb, GFP_ATOMIC))) { | |
0856e681 | 383 | lbs_deb_usbd(&cardp->udev->dev, "usb_submit_urb failed: %d\n", ret); |
876c9d3a MT |
384 | ret = -1; |
385 | } else { | |
eae86bf3 | 386 | lbs_deb_usb2(&cardp->udev->dev, "usb_submit_urb success\n"); |
876c9d3a MT |
387 | ret = 0; |
388 | } | |
389 | ||
390 | tx_ret: | |
391 | return ret; | |
392 | } | |
393 | ||
eae86bf3 | 394 | static int __if_usb_submit_rx_urb(struct if_usb_card *cardp, |
954ee164 | 395 | void (*callbackfn)(struct urb *urb)) |
876c9d3a | 396 | { |
876c9d3a | 397 | struct sk_buff *skb; |
876c9d3a MT |
398 | int ret = -1; |
399 | ||
400 | if (!(skb = dev_alloc_skb(MRVDRV_ETH_RX_PACKET_BUFFER_SIZE))) { | |
401 | lbs_pr_err("No free skb\n"); | |
402 | goto rx_ret; | |
403 | } | |
404 | ||
eae86bf3 | 405 | cardp->rx_skb = skb; |
876c9d3a MT |
406 | |
407 | /* Fill the receive configuration URB and initialise the Rx call back */ | |
408 | usb_fill_bulk_urb(cardp->rx_urb, cardp->udev, | |
eae86bf3 | 409 | usb_rcvbulkpipe(cardp->udev, cardp->ep_in), |
4269e2ad | 410 | (void *) (skb->tail + (size_t) IPFIELD_ALIGN_OFFSET), |
876c9d3a | 411 | MRVDRV_ETH_RX_PACKET_BUFFER_SIZE, callbackfn, |
eae86bf3 | 412 | cardp); |
876c9d3a MT |
413 | |
414 | cardp->rx_urb->transfer_flags |= URB_ZERO_PACKET; | |
415 | ||
eae86bf3 | 416 | lbs_deb_usb2(&cardp->udev->dev, "Pointer for rx_urb %p\n", cardp->rx_urb); |
876c9d3a | 417 | if ((ret = usb_submit_urb(cardp->rx_urb, GFP_ATOMIC))) { |
0856e681 | 418 | lbs_deb_usbd(&cardp->udev->dev, "Submit Rx URB failed: %d\n", ret); |
77d8cf2c | 419 | kfree_skb(skb); |
eae86bf3 | 420 | cardp->rx_skb = NULL; |
876c9d3a MT |
421 | ret = -1; |
422 | } else { | |
eae86bf3 | 423 | lbs_deb_usb2(&cardp->udev->dev, "Submit Rx URB success\n"); |
876c9d3a MT |
424 | ret = 0; |
425 | } | |
426 | ||
427 | rx_ret: | |
428 | return ret; | |
429 | } | |
430 | ||
eae86bf3 | 431 | static int if_usb_submit_rx_urb_fwload(struct if_usb_card *cardp) |
876c9d3a | 432 | { |
954ee164 | 433 | return __if_usb_submit_rx_urb(cardp, &if_usb_receive_fwload); |
876c9d3a MT |
434 | } |
435 | ||
eae86bf3 | 436 | static int if_usb_submit_rx_urb(struct if_usb_card *cardp) |
876c9d3a | 437 | { |
954ee164 | 438 | return __if_usb_submit_rx_urb(cardp, &if_usb_receive); |
876c9d3a MT |
439 | } |
440 | ||
441 | static void if_usb_receive_fwload(struct urb *urb) | |
442 | { | |
eae86bf3 DW |
443 | struct if_usb_card *cardp = urb->context; |
444 | struct sk_buff *skb = cardp->rx_skb; | |
876c9d3a | 445 | struct fwsyncheader *syncfwheader; |
eae86bf3 | 446 | struct bootcmdresp bootcmdresp; |
876c9d3a MT |
447 | |
448 | if (urb->status) { | |
9012b28a | 449 | lbs_deb_usbd(&cardp->udev->dev, |
eae86bf3 | 450 | "URB status is failed during fw load\n"); |
876c9d3a MT |
451 | kfree_skb(skb); |
452 | return; | |
453 | } | |
454 | ||
c9cd6f9d DW |
455 | if (cardp->fwdnldover) { |
456 | __le32 *tmp = (__le32 *)(skb->data + IPFIELD_ALIGN_OFFSET); | |
457 | ||
458 | if (tmp[0] == cpu_to_le32(CMD_TYPE_INDICATION) && | |
459 | tmp[1] == cpu_to_le32(MACREG_INT_CODE_FIRMWARE_READY)) { | |
460 | lbs_pr_info("Firmware ready event received\n"); | |
461 | wake_up(&cardp->fw_wq); | |
462 | } else { | |
eae86bf3 DW |
463 | lbs_deb_usb("Waiting for confirmation; got %x %x\n", |
464 | le32_to_cpu(tmp[0]), le32_to_cpu(tmp[1])); | |
c9cd6f9d DW |
465 | if_usb_submit_rx_urb_fwload(cardp); |
466 | } | |
467 | kfree_skb(skb); | |
468 | return; | |
469 | } | |
c8ba39d0 | 470 | if (cardp->bootcmdresp <= 0) { |
876c9d3a MT |
471 | memcpy (&bootcmdresp, skb->data + IPFIELD_ALIGN_OFFSET, |
472 | sizeof(bootcmdresp)); | |
eae86bf3 | 473 | |
981f187b | 474 | if (le16_to_cpu(cardp->udev->descriptor.bcdDevice) < 0x3106) { |
876c9d3a | 475 | kfree_skb(skb); |
954ee164 | 476 | if_usb_submit_rx_urb_fwload(cardp); |
876c9d3a | 477 | cardp->bootcmdresp = 1; |
9012b28a | 478 | lbs_deb_usbd(&cardp->udev->dev, |
eae86bf3 | 479 | "Received valid boot command response\n"); |
876c9d3a MT |
480 | return; |
481 | } | |
eae86bf3 DW |
482 | if (bootcmdresp.magic != cpu_to_le32(BOOT_CMD_MAGIC_NUMBER)) { |
483 | if (bootcmdresp.magic == cpu_to_le32(CMD_TYPE_REQUEST) || | |
484 | bootcmdresp.magic == cpu_to_le32(CMD_TYPE_DATA) || | |
485 | bootcmdresp.magic == cpu_to_le32(CMD_TYPE_INDICATION)) { | |
c9cd6f9d DW |
486 | if (!cardp->bootcmdresp) |
487 | lbs_pr_info("Firmware already seems alive; resetting\n"); | |
6d35fdfc DW |
488 | cardp->bootcmdresp = -1; |
489 | } else { | |
490 | lbs_pr_info("boot cmd response wrong magic number (0x%x)\n", | |
eae86bf3 | 491 | le32_to_cpu(bootcmdresp.magic)); |
6d35fdfc | 492 | } |
eae86bf3 DW |
493 | } else if (bootcmdresp.cmd != BOOT_CMD_FW_BY_USB) { |
494 | lbs_pr_info("boot cmd response cmd_tag error (%d)\n", | |
495 | bootcmdresp.cmd); | |
496 | } else if (bootcmdresp.result != BOOT_CMD_RESP_OK) { | |
497 | lbs_pr_info("boot cmd response result error (%d)\n", | |
498 | bootcmdresp.result); | |
876c9d3a MT |
499 | } else { |
500 | cardp->bootcmdresp = 1; | |
9012b28a | 501 | lbs_deb_usbd(&cardp->udev->dev, |
eae86bf3 | 502 | "Received valid boot command response\n"); |
876c9d3a MT |
503 | } |
504 | kfree_skb(skb); | |
954ee164 | 505 | if_usb_submit_rx_urb_fwload(cardp); |
876c9d3a MT |
506 | return; |
507 | } | |
508 | ||
509 | syncfwheader = kmalloc(sizeof(struct fwsyncheader), GFP_ATOMIC); | |
510 | if (!syncfwheader) { | |
9012b28a | 511 | lbs_deb_usbd(&cardp->udev->dev, "Failure to allocate syncfwheader\n"); |
876c9d3a MT |
512 | kfree_skb(skb); |
513 | return; | |
514 | } | |
515 | ||
516 | memcpy(syncfwheader, skb->data + IPFIELD_ALIGN_OFFSET, | |
eae86bf3 | 517 | sizeof(struct fwsyncheader)); |
876c9d3a MT |
518 | |
519 | if (!syncfwheader->cmd) { | |
eae86bf3 DW |
520 | lbs_deb_usb2(&cardp->udev->dev, "FW received Blk with correct CRC\n"); |
521 | lbs_deb_usb2(&cardp->udev->dev, "FW received Blk seqnum = %d\n", | |
522 | le32_to_cpu(syncfwheader->seqnum)); | |
876c9d3a MT |
523 | cardp->CRC_OK = 1; |
524 | } else { | |
eae86bf3 | 525 | lbs_deb_usbd(&cardp->udev->dev, "FW received Blk with CRC error\n"); |
876c9d3a MT |
526 | cardp->CRC_OK = 0; |
527 | } | |
528 | ||
529 | kfree_skb(skb); | |
530 | ||
4f82f5c8 DW |
531 | /* reschedule timer for 200ms hence */ |
532 | mod_timer(&cardp->fw_timeout, jiffies + (HZ/5)); | |
533 | ||
876c9d3a MT |
534 | if (cardp->fwfinalblk) { |
535 | cardp->fwdnldover = 1; | |
536 | goto exit; | |
537 | } | |
538 | ||
4f82f5c8 | 539 | if_usb_send_fw_pkt(cardp); |
876c9d3a | 540 | |
4f82f5c8 | 541 | exit: |
c9cd6f9d DW |
542 | if_usb_submit_rx_urb_fwload(cardp); |
543 | ||
876c9d3a MT |
544 | kfree(syncfwheader); |
545 | ||
546 | return; | |
876c9d3a MT |
547 | } |
548 | ||
549 | #define MRVDRV_MIN_PKT_LEN 30 | |
550 | ||
551 | static inline void process_cmdtypedata(int recvlength, struct sk_buff *skb, | |
eae86bf3 | 552 | struct if_usb_card *cardp, |
69f9032d | 553 | struct lbs_private *priv) |
876c9d3a | 554 | { |
eae86bf3 DW |
555 | if (recvlength > MRVDRV_ETH_RX_PACKET_BUFFER_SIZE + MESSAGE_HEADER_LEN |
556 | || recvlength < MRVDRV_MIN_PKT_LEN) { | |
557 | lbs_deb_usbd(&cardp->udev->dev, "Packet length is Invalid\n"); | |
876c9d3a MT |
558 | kfree_skb(skb); |
559 | return; | |
560 | } | |
561 | ||
562 | skb_reserve(skb, IPFIELD_ALIGN_OFFSET); | |
563 | skb_put(skb, recvlength); | |
564 | skb_pull(skb, MESSAGE_HEADER_LEN); | |
eae86bf3 | 565 | |
10078321 | 566 | lbs_process_rxed_packet(priv, skb); |
634b8f49 | 567 | priv->upld_len = (recvlength - MESSAGE_HEADER_LEN); |
876c9d3a MT |
568 | } |
569 | ||
eae86bf3 | 570 | static inline void process_cmdrequest(int recvlength, uint8_t *recvbuff, |
876c9d3a | 571 | struct sk_buff *skb, |
eae86bf3 | 572 | struct if_usb_card *cardp, |
69f9032d | 573 | struct lbs_private *priv) |
876c9d3a | 574 | { |
eae86bf3 DW |
575 | uint8_t *cmdbuf; |
576 | ||
ddac4526 | 577 | if (recvlength > LBS_CMD_BUFFER_SIZE) { |
9012b28a | 578 | lbs_deb_usbd(&cardp->udev->dev, |
eae86bf3 | 579 | "The receive buffer is too large\n"); |
876c9d3a MT |
580 | kfree_skb(skb); |
581 | return; | |
582 | } | |
583 | ||
584 | if (!in_interrupt()) | |
585 | BUG(); | |
586 | ||
aa21c004 | 587 | spin_lock(&priv->driver_lock); |
876c9d3a MT |
588 | /* take care of cur_cmd = NULL case by reading the |
589 | * data to clear the interrupt */ | |
aa21c004 | 590 | if (!priv->cur_cmd) { |
eae86bf3 DW |
591 | lbs_deb_hex(LBS_DEB_HOST, "Unsolicited CMD_RESP", |
592 | (void *) recvbuff + MESSAGE_HEADER_LEN, priv->upld_len); | |
634b8f49 | 593 | cmdbuf = priv->upld_buf; |
aa21c004 | 594 | priv->hisregcpy &= ~MRVDRV_CMD_UPLD_RDY; |
876c9d3a | 595 | } else |
eae86bf3 | 596 | cmdbuf = (uint8_t *) priv->cur_cmd->cmdbuf; |
876c9d3a | 597 | |
c95c7f93 | 598 | cardp->usb_int_cause |= MRVDRV_CMD_UPLD_RDY; |
634b8f49 | 599 | priv->upld_len = (recvlength - MESSAGE_HEADER_LEN); |
eae86bf3 | 600 | memcpy(cmdbuf, recvbuff + MESSAGE_HEADER_LEN, priv->upld_len); |
876c9d3a MT |
601 | |
602 | kfree_skb(skb); | |
4f679496 | 603 | lbs_interrupt(priv); |
aa21c004 | 604 | spin_unlock(&priv->driver_lock); |
876c9d3a | 605 | |
9012b28a | 606 | lbs_deb_usbd(&cardp->udev->dev, |
876c9d3a | 607 | "Wake up main thread to handle cmd response\n"); |
876c9d3a MT |
608 | } |
609 | ||
610 | /** | |
611 | * @brief This function reads of the packet into the upload buff, | |
612 | * wake up the main thread and initialise the Rx callack. | |
613 | * | |
614 | * @param urb pointer to struct urb | |
615 | * @return N/A | |
616 | */ | |
617 | static void if_usb_receive(struct urb *urb) | |
618 | { | |
eae86bf3 DW |
619 | struct if_usb_card *cardp = urb->context; |
620 | struct sk_buff *skb = cardp->rx_skb; | |
69f9032d | 621 | struct lbs_private *priv = cardp->priv; |
876c9d3a | 622 | int recvlength = urb->actual_length; |
eae86bf3 DW |
623 | uint8_t *recvbuff = NULL; |
624 | uint32_t recvtype = 0; | |
625 | __le32 *pkt = (__le32 *)(skb->data + IPFIELD_ALIGN_OFFSET); | |
876c9d3a | 626 | |
9012b28a | 627 | lbs_deb_enter(LBS_DEB_USB); |
876c9d3a MT |
628 | |
629 | if (recvlength) { | |
630 | if (urb->status) { | |
eae86bf3 DW |
631 | lbs_deb_usbd(&cardp->udev->dev, "RX URB failed: %d\n", |
632 | urb->status); | |
876c9d3a MT |
633 | kfree_skb(skb); |
634 | goto setup_for_next; | |
635 | } | |
636 | ||
637 | recvbuff = skb->data + IPFIELD_ALIGN_OFFSET; | |
eae86bf3 | 638 | recvtype = le32_to_cpu(pkt[0]); |
9012b28a | 639 | lbs_deb_usbd(&cardp->udev->dev, |
8362cd41 DW |
640 | "Recv length = 0x%x, Recv type = 0x%X\n", |
641 | recvlength, recvtype); | |
77d8cf2c DW |
642 | } else if (urb->status) { |
643 | kfree_skb(skb); | |
876c9d3a | 644 | goto rx_exit; |
77d8cf2c | 645 | } |
876c9d3a | 646 | |
876c9d3a MT |
647 | switch (recvtype) { |
648 | case CMD_TYPE_DATA: | |
649 | process_cmdtypedata(recvlength, skb, cardp, priv); | |
650 | break; | |
651 | ||
652 | case CMD_TYPE_REQUEST: | |
653 | process_cmdrequest(recvlength, recvbuff, skb, cardp, priv); | |
654 | break; | |
655 | ||
656 | case CMD_TYPE_INDICATION: | |
657 | /* Event cause handling */ | |
aa21c004 | 658 | spin_lock(&priv->driver_lock); |
eae86bf3 DW |
659 | |
660 | cardp->usb_event_cause = le32_to_cpu(pkt[1]); | |
661 | ||
9012b28a | 662 | lbs_deb_usbd(&cardp->udev->dev,"**EVENT** 0x%X\n", |
eae86bf3 DW |
663 | cardp->usb_event_cause); |
664 | ||
665 | /* Icky undocumented magic special case */ | |
876c9d3a | 666 | if (cardp->usb_event_cause & 0xffff0000) { |
10078321 | 667 | lbs_send_tx_feedback(priv); |
aa21c004 | 668 | spin_unlock(&priv->driver_lock); |
876c9d3a MT |
669 | break; |
670 | } | |
981f187b | 671 | cardp->usb_event_cause <<= 3; |
c95c7f93 | 672 | cardp->usb_int_cause |= MRVDRV_CARDEVENT; |
876c9d3a | 673 | kfree_skb(skb); |
4f679496 | 674 | lbs_interrupt(priv); |
aa21c004 | 675 | spin_unlock(&priv->driver_lock); |
876c9d3a MT |
676 | goto rx_exit; |
677 | default: | |
8362cd41 | 678 | lbs_deb_usbd(&cardp->udev->dev, "Unknown command type 0x%X\n", |
eae86bf3 | 679 | recvtype); |
876c9d3a MT |
680 | kfree_skb(skb); |
681 | break; | |
682 | } | |
683 | ||
684 | setup_for_next: | |
954ee164 | 685 | if_usb_submit_rx_urb(cardp); |
876c9d3a | 686 | rx_exit: |
9012b28a | 687 | lbs_deb_leave(LBS_DEB_USB); |
876c9d3a MT |
688 | } |
689 | ||
690 | /** | |
691 | * @brief This function downloads data to FW | |
69f9032d | 692 | * @param priv pointer to struct lbs_private structure |
876c9d3a MT |
693 | * @param type type of data |
694 | * @param buf pointer to data buffer | |
695 | * @param len number of bytes | |
696 | * @return 0 or -1 | |
697 | */ | |
eae86bf3 DW |
698 | static int if_usb_host_to_card(struct lbs_private *priv, uint8_t type, |
699 | uint8_t *payload, uint16_t nb) | |
876c9d3a | 700 | { |
eae86bf3 | 701 | struct if_usb_card *cardp = priv->card; |
876c9d3a | 702 | |
9012b28a HS |
703 | lbs_deb_usbd(&cardp->udev->dev,"*** type = %u\n", type); |
704 | lbs_deb_usbd(&cardp->udev->dev,"size after = %d\n", nb); | |
876c9d3a MT |
705 | |
706 | if (type == MVMS_CMD) { | |
eae86bf3 | 707 | *(__le32 *)cardp->ep_out_buf = cpu_to_le32(CMD_TYPE_REQUEST); |
634b8f49 | 708 | priv->dnld_sent = DNLD_CMD_SENT; |
876c9d3a | 709 | } else { |
eae86bf3 | 710 | *(__le32 *)cardp->ep_out_buf = cpu_to_le32(CMD_TYPE_DATA); |
634b8f49 | 711 | priv->dnld_sent = DNLD_DATA_SENT; |
876c9d3a MT |
712 | } |
713 | ||
eae86bf3 | 714 | memcpy((cardp->ep_out_buf + MESSAGE_HEADER_LEN), payload, nb); |
876c9d3a | 715 | |
eae86bf3 | 716 | return usb_tx_block(cardp, cardp->ep_out_buf, nb + MESSAGE_HEADER_LEN); |
876c9d3a MT |
717 | } |
718 | ||
aa21c004 | 719 | /* called with priv->driver_lock held */ |
eae86bf3 | 720 | static int if_usb_get_int_status(struct lbs_private *priv, uint8_t *ireg) |
876c9d3a | 721 | { |
eae86bf3 | 722 | struct if_usb_card *cardp = priv->card; |
876c9d3a MT |
723 | |
724 | *ireg = cardp->usb_int_cause; | |
725 | cardp->usb_int_cause = 0; | |
726 | ||
eae86bf3 | 727 | lbs_deb_usbd(&cardp->udev->dev, "Int cause is 0x%X\n", *ireg); |
876c9d3a MT |
728 | |
729 | return 0; | |
730 | } | |
731 | ||
69f9032d | 732 | static int if_usb_read_event_cause(struct lbs_private *priv) |
876c9d3a | 733 | { |
eae86bf3 | 734 | struct if_usb_card *cardp = priv->card; |
954ee164 | 735 | |
aa21c004 | 736 | priv->eventcause = cardp->usb_event_cause; |
876c9d3a | 737 | /* Re-submit rx urb here to avoid event lost issue */ |
954ee164 | 738 | if_usb_submit_rx_urb(cardp); |
eae86bf3 | 739 | |
876c9d3a MT |
740 | return 0; |
741 | } | |
742 | ||
9e22cb67 DW |
743 | /** |
744 | * @brief This function issues Boot command to the Boot2 code | |
745 | * @param ivalue 1:Boot from FW by USB-Download | |
746 | * 2:Boot from FW in EEPROM | |
747 | * @return 0 | |
748 | */ | |
eae86bf3 | 749 | static int if_usb_issue_boot_command(struct if_usb_card *cardp, int ivalue) |
9e22cb67 | 750 | { |
eae86bf3 | 751 | struct bootcmd *bootcmd = cardp->ep_out_buf; |
9e22cb67 DW |
752 | |
753 | /* Prepare command */ | |
eae86bf3 DW |
754 | bootcmd->magic = cpu_to_le32(BOOT_CMD_MAGIC_NUMBER); |
755 | bootcmd->cmd = ivalue; | |
756 | memset(bootcmd->pad, 0, sizeof(bootcmd->pad)); | |
9e22cb67 DW |
757 | |
758 | /* Issue command */ | |
eae86bf3 | 759 | usb_tx_block(cardp, cardp->ep_out_buf, sizeof(*bootcmd)); |
9e22cb67 DW |
760 | |
761 | return 0; | |
762 | } | |
876c9d3a MT |
763 | |
764 | ||
954ee164 DW |
765 | /** |
766 | * @brief This function checks the validity of Boot2/FW image. | |
767 | * | |
768 | * @param data pointer to image | |
769 | * len image length | |
770 | * @return 0 or -1 | |
771 | */ | |
eae86bf3 | 772 | static int check_fwfile_format(uint8_t *data, uint32_t totlen) |
954ee164 | 773 | { |
eae86bf3 DW |
774 | uint32_t bincmd, exit; |
775 | uint32_t blksize, offset, len; | |
954ee164 DW |
776 | int ret; |
777 | ||
778 | ret = 1; | |
779 | exit = len = 0; | |
780 | ||
781 | do { | |
782 | struct fwheader *fwh = (void *)data; | |
783 | ||
784 | bincmd = le32_to_cpu(fwh->dnldcmd); | |
785 | blksize = le32_to_cpu(fwh->datalength); | |
786 | switch (bincmd) { | |
787 | case FW_HAS_DATA_TO_RECV: | |
788 | offset = sizeof(struct fwheader) + blksize; | |
789 | data += offset; | |
790 | len += offset; | |
791 | if (len >= totlen) | |
792 | exit = 1; | |
793 | break; | |
794 | case FW_HAS_LAST_BLOCK: | |
795 | exit = 1; | |
796 | ret = 0; | |
797 | break; | |
798 | default: | |
799 | exit = 1; | |
800 | break; | |
801 | } | |
802 | } while (!exit); | |
803 | ||
804 | if (ret) | |
805 | lbs_pr_err("firmware file format check FAIL\n"); | |
806 | else | |
807 | lbs_deb_fw("firmware file format check PASS\n"); | |
808 | ||
809 | return ret; | |
810 | } | |
811 | ||
812 | ||
eae86bf3 | 813 | static int if_usb_prog_firmware(struct if_usb_card *cardp) |
876c9d3a | 814 | { |
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 | 820 | |
10078321 | 821 | if ((ret = request_firmware(&cardp->fw, lbs_fw_name, |
954ee164 DW |
822 | &cardp->udev->dev)) < 0) { |
823 | lbs_pr_err("request_firmware() failed with %#x\n", ret); | |
10078321 | 824 | lbs_pr_err("firmware %s not found\n", lbs_fw_name); |
954ee164 DW |
825 | goto done; |
826 | } | |
827 | ||
828 | if (check_fwfile_format(cardp->fw->data, cardp->fw->size)) | |
829 | goto release_fw; | |
876c9d3a MT |
830 | |
831 | restart: | |
954ee164 | 832 | if (if_usb_submit_rx_urb_fwload(cardp) < 0) { |
9012b28a HS |
833 | lbs_deb_usbd(&cardp->udev->dev, "URB submission is failed\n"); |
834 | ret = -1; | |
954ee164 | 835 | goto release_fw; |
876c9d3a MT |
836 | } |
837 | ||
876c9d3a MT |
838 | cardp->bootcmdresp = 0; |
839 | do { | |
840 | int j = 0; | |
841 | i++; | |
842 | /* Issue Boot command = 1, Boot from Download-FW */ | |
954ee164 | 843 | if_usb_issue_boot_command(cardp, BOOT_CMD_FW_BY_USB); |
876c9d3a MT |
844 | /* wait for command response */ |
845 | do { | |
846 | j++; | |
847 | msleep_interruptible(100); | |
848 | } while (cardp->bootcmdresp == 0 && j < 10); | |
849 | } while (cardp->bootcmdresp == 0 && i < 5); | |
850 | ||
6d35fdfc | 851 | if (cardp->bootcmdresp <= 0) { |
876c9d3a | 852 | if (--reset_count >= 0) { |
954ee164 | 853 | if_usb_reset_device(cardp); |
876c9d3a MT |
854 | goto restart; |
855 | } | |
856 | return -1; | |
857 | } | |
876c9d3a MT |
858 | |
859 | i = 0; | |
876c9d3a MT |
860 | |
861 | cardp->totalbytes = 0; | |
862 | cardp->fwlastblksent = 0; | |
863 | cardp->CRC_OK = 1; | |
864 | cardp->fwdnldover = 0; | |
865 | cardp->fwseqnum = -1; | |
866 | cardp->totalbytes = 0; | |
867 | cardp->fwfinalblk = 0; | |
868 | ||
4f82f5c8 DW |
869 | /* Send the first firmware packet... */ |
870 | if_usb_send_fw_pkt(cardp); | |
876c9d3a | 871 | |
4f82f5c8 DW |
872 | /* ... and wait for the process to complete */ |
873 | wait_event_interruptible(cardp->fw_wq, cardp->surprise_removed || cardp->fwdnldover); | |
7e226272 | 874 | |
4f82f5c8 | 875 | del_timer_sync(&cardp->fw_timeout); |
c9cd6f9d | 876 | usb_kill_urb(cardp->rx_urb); |
876c9d3a MT |
877 | |
878 | if (!cardp->fwdnldover) { | |
879 | lbs_pr_info("failed to load fw, resetting device!\n"); | |
880 | if (--reset_count >= 0) { | |
954ee164 | 881 | if_usb_reset_device(cardp); |
876c9d3a MT |
882 | goto restart; |
883 | } | |
884 | ||
885 | lbs_pr_info("FW download failure, time = %d ms\n", i * 100); | |
9012b28a | 886 | ret = -1; |
954ee164 | 887 | goto release_fw; |
876c9d3a MT |
888 | } |
889 | ||
eae86bf3 | 890 | release_fw: |
954ee164 DW |
891 | release_firmware(cardp->fw); |
892 | cardp->fw = NULL; | |
876c9d3a | 893 | |
eae86bf3 | 894 | done: |
9012b28a HS |
895 | lbs_deb_leave_args(LBS_DEB_USB, "ret %d", ret); |
896 | return ret; | |
876c9d3a MT |
897 | } |
898 | ||
1df4e8fe | 899 | |
876c9d3a MT |
900 | #ifdef CONFIG_PM |
901 | static int if_usb_suspend(struct usb_interface *intf, pm_message_t message) | |
902 | { | |
eae86bf3 | 903 | struct if_usb_card *cardp = usb_get_intfdata(intf); |
69f9032d | 904 | struct lbs_private *priv = cardp->priv; |
d1f7a5b8 | 905 | int ret; |
876c9d3a | 906 | |
9012b28a | 907 | lbs_deb_enter(LBS_DEB_USB); |
876c9d3a | 908 | |
aa21c004 | 909 | if (priv->psstate != PS_STATE_FULL_POWER) |
876c9d3a MT |
910 | return -1; |
911 | ||
d1f7a5b8 DW |
912 | ret = lbs_suspend(priv); |
913 | if (ret) | |
914 | goto out; | |
876c9d3a MT |
915 | |
916 | /* Unlink tx & rx urb */ | |
917 | usb_kill_urb(cardp->tx_urb); | |
918 | usb_kill_urb(cardp->rx_urb); | |
919 | ||
d1f7a5b8 | 920 | out: |
9012b28a | 921 | lbs_deb_leave(LBS_DEB_USB); |
d1f7a5b8 | 922 | return ret; |
876c9d3a MT |
923 | } |
924 | ||
925 | static int if_usb_resume(struct usb_interface *intf) | |
926 | { | |
eae86bf3 | 927 | struct if_usb_card *cardp = usb_get_intfdata(intf); |
69f9032d | 928 | struct lbs_private *priv = cardp->priv; |
876c9d3a | 929 | |
9012b28a | 930 | lbs_deb_enter(LBS_DEB_USB); |
876c9d3a | 931 | |
6bc822b5 | 932 | if_usb_submit_rx_urb(cardp); |
876c9d3a | 933 | |
d1f7a5b8 | 934 | lbs_resume(priv); |
876c9d3a | 935 | |
9012b28a | 936 | lbs_deb_leave(LBS_DEB_USB); |
876c9d3a MT |
937 | return 0; |
938 | } | |
939 | #else | |
940 | #define if_usb_suspend NULL | |
941 | #define if_usb_resume NULL | |
942 | #endif | |
943 | ||
944 | static struct usb_driver if_usb_driver = { | |
798fbfec | 945 | .name = DRV_NAME, |
876c9d3a | 946 | .probe = if_usb_probe, |
876c9d3a | 947 | .disconnect = if_usb_disconnect, |
876c9d3a MT |
948 | .id_table = if_usb_table, |
949 | .suspend = if_usb_suspend, | |
950 | .resume = if_usb_resume, | |
951 | }; | |
952 | ||
4fb910fd | 953 | static int __init if_usb_init_module(void) |
876c9d3a | 954 | { |
084708b6 | 955 | int ret = 0; |
876c9d3a | 956 | |
084708b6 HS |
957 | lbs_deb_enter(LBS_DEB_MAIN); |
958 | ||
084708b6 HS |
959 | ret = usb_register(&if_usb_driver); |
960 | ||
961 | lbs_deb_leave_args(LBS_DEB_MAIN, "ret %d", ret); | |
962 | return ret; | |
876c9d3a MT |
963 | } |
964 | ||
4fb910fd | 965 | static void __exit if_usb_exit_module(void) |
876c9d3a | 966 | { |
084708b6 HS |
967 | lbs_deb_enter(LBS_DEB_MAIN); |
968 | ||
876c9d3a | 969 | usb_deregister(&if_usb_driver); |
084708b6 HS |
970 | |
971 | lbs_deb_leave(LBS_DEB_MAIN); | |
876c9d3a | 972 | } |
084708b6 HS |
973 | |
974 | module_init(if_usb_init_module); | |
975 | module_exit(if_usb_exit_module); | |
976 | ||
977 | MODULE_DESCRIPTION("8388 USB WLAN Driver"); | |
eae86bf3 | 978 | MODULE_AUTHOR("Marvell International Ltd. and Red Hat, Inc."); |
084708b6 | 979 | MODULE_LICENSE("GPL"); |