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4daffe35 AK |
1 | /* |
2 | * Marvell Wireless LAN device driver: USB specific handling | |
3 | * | |
65da33f5 | 4 | * Copyright (C) 2012-2014, Marvell International Ltd. |
4daffe35 AK |
5 | * |
6 | * This software file (the "File") is distributed by Marvell International | |
7 | * Ltd. under the terms of the GNU General Public License Version 2, June 1991 | |
8 | * (the "License"). You may use, redistribute and/or modify this File in | |
9 | * accordance with the terms and conditions of the License, a copy of which | |
10 | * is available by writing to the Free Software Foundation, Inc., | |
11 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or on the | |
12 | * worldwide web at http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt. | |
13 | * | |
14 | * THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE | |
15 | * IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE | |
16 | * ARE EXPRESSLY DISCLAIMED. The License provides additional details about | |
17 | * this warranty disclaimer. | |
18 | */ | |
19 | ||
20 | #include "main.h" | |
21 | #include "usb.h" | |
22 | ||
23 | #define USB_VERSION "1.0" | |
24 | ||
3fffd7c1 | 25 | static u8 user_rmmod; |
4daffe35 AK |
26 | static struct mwifiex_if_ops usb_ops; |
27 | static struct semaphore add_remove_card_sem; | |
28 | ||
29 | static struct usb_device_id mwifiex_usb_table[] = { | |
9e6f3f47 KE |
30 | /* 8766 */ |
31 | {USB_DEVICE(USB8XXX_VID, USB8766_PID_1)}, | |
32 | {USB_DEVICE_AND_INTERFACE_INFO(USB8XXX_VID, USB8766_PID_2, | |
33 | USB_CLASS_VENDOR_SPEC, | |
34 | USB_SUBCLASS_VENDOR_SPEC, 0xff)}, | |
68458ded YAP |
35 | /* 8797 */ |
36 | {USB_DEVICE(USB8XXX_VID, USB8797_PID_1)}, | |
37 | {USB_DEVICE_AND_INTERFACE_INFO(USB8XXX_VID, USB8797_PID_2, | |
38 | USB_CLASS_VENDOR_SPEC, | |
39 | USB_SUBCLASS_VENDOR_SPEC, 0xff)}, | |
eaa3d9fa YAP |
40 | /* 8801 */ |
41 | {USB_DEVICE(USB8XXX_VID, USB8801_PID_1)}, | |
42 | {USB_DEVICE_AND_INTERFACE_INFO(USB8XXX_VID, USB8801_PID_2, | |
43 | USB_CLASS_VENDOR_SPEC, | |
44 | USB_SUBCLASS_VENDOR_SPEC, 0xff)}, | |
68458ded YAP |
45 | /* 8897 */ |
46 | {USB_DEVICE(USB8XXX_VID, USB8897_PID_1)}, | |
47 | {USB_DEVICE_AND_INTERFACE_INFO(USB8XXX_VID, USB8897_PID_2, | |
4daffe35 AK |
48 | USB_CLASS_VENDOR_SPEC, |
49 | USB_SUBCLASS_VENDOR_SPEC, 0xff)}, | |
50 | { } /* Terminating entry */ | |
51 | }; | |
52 | ||
53 | MODULE_DEVICE_TABLE(usb, mwifiex_usb_table); | |
54 | ||
55 | static int mwifiex_usb_submit_rx_urb(struct urb_context *ctx, int size); | |
56 | ||
57 | /* This function handles received packet. Necessary action is taken based on | |
58 | * cmd/event/data. | |
59 | */ | |
60 | static int mwifiex_usb_recv(struct mwifiex_adapter *adapter, | |
61 | struct sk_buff *skb, u8 ep) | |
62 | { | |
63 | struct device *dev = adapter->dev; | |
64 | u32 recv_type; | |
65 | __le32 tmp; | |
8311f0da | 66 | int ret; |
4daffe35 AK |
67 | |
68 | if (adapter->hs_activated) | |
69 | mwifiex_process_hs_config(adapter); | |
70 | ||
71 | if (skb->len < INTF_HEADER_LEN) { | |
72 | dev_err(dev, "%s: invalid skb->len\n", __func__); | |
73 | return -1; | |
74 | } | |
75 | ||
76 | switch (ep) { | |
77 | case MWIFIEX_USB_EP_CMD_EVENT: | |
78 | dev_dbg(dev, "%s: EP_CMD_EVENT\n", __func__); | |
79 | skb_copy_from_linear_data(skb, &tmp, INTF_HEADER_LEN); | |
80 | recv_type = le32_to_cpu(tmp); | |
81 | skb_pull(skb, INTF_HEADER_LEN); | |
82 | ||
83 | switch (recv_type) { | |
84 | case MWIFIEX_USB_TYPE_CMD: | |
85 | if (skb->len > MWIFIEX_SIZE_OF_CMD_BUFFER) { | |
86 | dev_err(dev, "CMD: skb->len too large\n"); | |
8311f0da AK |
87 | ret = -1; |
88 | goto exit_restore_skb; | |
4daffe35 AK |
89 | } else if (!adapter->curr_cmd) { |
90 | dev_dbg(dev, "CMD: no curr_cmd\n"); | |
91 | if (adapter->ps_state == PS_STATE_SLEEP_CFM) { | |
92 | mwifiex_process_sleep_confirm_resp( | |
93 | adapter, skb->data, | |
94 | skb->len); | |
8311f0da AK |
95 | ret = 0; |
96 | goto exit_restore_skb; | |
4daffe35 | 97 | } |
8311f0da AK |
98 | ret = -1; |
99 | goto exit_restore_skb; | |
4daffe35 AK |
100 | } |
101 | ||
102 | adapter->curr_cmd->resp_skb = skb; | |
103 | adapter->cmd_resp_received = true; | |
104 | break; | |
105 | case MWIFIEX_USB_TYPE_EVENT: | |
106 | if (skb->len < sizeof(u32)) { | |
107 | dev_err(dev, "EVENT: skb->len too small\n"); | |
8311f0da AK |
108 | ret = -1; |
109 | goto exit_restore_skb; | |
4daffe35 AK |
110 | } |
111 | skb_copy_from_linear_data(skb, &tmp, sizeof(u32)); | |
112 | adapter->event_cause = le32_to_cpu(tmp); | |
4daffe35 AK |
113 | dev_dbg(dev, "event_cause %#x\n", adapter->event_cause); |
114 | ||
115 | if (skb->len > MAX_EVENT_SIZE) { | |
116 | dev_err(dev, "EVENT: event body too large\n"); | |
8311f0da AK |
117 | ret = -1; |
118 | goto exit_restore_skb; | |
4daffe35 AK |
119 | } |
120 | ||
e80c81dc AK |
121 | memcpy(adapter->event_body, skb->data + |
122 | MWIFIEX_EVENT_HEADER_LEN, skb->len); | |
123 | ||
4daffe35 AK |
124 | adapter->event_received = true; |
125 | adapter->event_skb = skb; | |
126 | break; | |
127 | default: | |
128 | dev_err(dev, "unknown recv_type %#x\n", recv_type); | |
129 | return -1; | |
130 | } | |
131 | break; | |
132 | case MWIFIEX_USB_EP_DATA: | |
133 | dev_dbg(dev, "%s: EP_DATA\n", __func__); | |
134 | if (skb->len > MWIFIEX_RX_DATA_BUF_SIZE) { | |
135 | dev_err(dev, "DATA: skb->len too large\n"); | |
136 | return -1; | |
137 | } | |
ec4a16b4 AP |
138 | |
139 | skb_queue_tail(&adapter->rx_data_q, skb); | |
4daffe35 | 140 | adapter->data_received = true; |
ec4a16b4 | 141 | atomic_inc(&adapter->rx_pending); |
4daffe35 AK |
142 | break; |
143 | default: | |
144 | dev_err(dev, "%s: unknown endport %#x\n", __func__, ep); | |
145 | return -1; | |
146 | } | |
147 | ||
148 | return -EINPROGRESS; | |
8311f0da AK |
149 | |
150 | exit_restore_skb: | |
151 | /* The buffer will be reused for further cmds/events */ | |
152 | skb_push(skb, INTF_HEADER_LEN); | |
153 | ||
154 | return ret; | |
4daffe35 AK |
155 | } |
156 | ||
157 | static void mwifiex_usb_rx_complete(struct urb *urb) | |
158 | { | |
159 | struct urb_context *context = (struct urb_context *)urb->context; | |
160 | struct mwifiex_adapter *adapter = context->adapter; | |
161 | struct sk_buff *skb = context->skb; | |
162 | struct usb_card_rec *card; | |
163 | int recv_length = urb->actual_length; | |
164 | int size, status; | |
165 | ||
166 | if (!adapter || !adapter->card) { | |
167 | pr_err("mwifiex adapter or card structure is not valid\n"); | |
168 | return; | |
169 | } | |
170 | ||
171 | card = (struct usb_card_rec *)adapter->card; | |
172 | if (card->rx_cmd_ep == context->ep) | |
173 | atomic_dec(&card->rx_cmd_urb_pending); | |
174 | else | |
175 | atomic_dec(&card->rx_data_urb_pending); | |
176 | ||
177 | if (recv_length) { | |
178 | if (urb->status || (adapter->surprise_removed)) { | |
179 | dev_err(adapter->dev, | |
180 | "URB status is failed: %d\n", urb->status); | |
181 | /* Do not free skb in case of command ep */ | |
182 | if (card->rx_cmd_ep != context->ep) | |
183 | dev_kfree_skb_any(skb); | |
184 | goto setup_for_next; | |
185 | } | |
186 | if (skb->len > recv_length) | |
187 | skb_trim(skb, recv_length); | |
188 | else | |
189 | skb_put(skb, recv_length - skb->len); | |
190 | ||
4daffe35 AK |
191 | status = mwifiex_usb_recv(adapter, skb, context->ep); |
192 | ||
193 | dev_dbg(adapter->dev, "info: recv_length=%d, status=%d\n", | |
194 | recv_length, status); | |
195 | if (status == -EINPROGRESS) { | |
196 | queue_work(adapter->workqueue, &adapter->main_work); | |
197 | ||
198 | /* urb for data_ep is re-submitted now; | |
199 | * urb for cmd_ep will be re-submitted in callback | |
200 | * mwifiex_usb_recv_complete | |
201 | */ | |
202 | if (card->rx_cmd_ep == context->ep) | |
203 | return; | |
204 | } else { | |
4daffe35 AK |
205 | if (status == -1) |
206 | dev_err(adapter->dev, | |
207 | "received data processing failed!\n"); | |
208 | ||
209 | /* Do not free skb in case of command ep */ | |
210 | if (card->rx_cmd_ep != context->ep) | |
211 | dev_kfree_skb_any(skb); | |
212 | } | |
213 | } else if (urb->status) { | |
214 | if (!adapter->is_suspended) { | |
215 | dev_warn(adapter->dev, | |
216 | "Card is removed: %d\n", urb->status); | |
217 | adapter->surprise_removed = true; | |
218 | } | |
219 | dev_kfree_skb_any(skb); | |
220 | return; | |
221 | } else { | |
222 | /* Do not free skb in case of command ep */ | |
223 | if (card->rx_cmd_ep != context->ep) | |
224 | dev_kfree_skb_any(skb); | |
225 | ||
226 | /* fall through setup_for_next */ | |
227 | } | |
228 | ||
229 | setup_for_next: | |
230 | if (card->rx_cmd_ep == context->ep) | |
231 | size = MWIFIEX_RX_CMD_BUF_SIZE; | |
232 | else | |
233 | size = MWIFIEX_RX_DATA_BUF_SIZE; | |
234 | ||
cf6a64fd AK |
235 | if (card->rx_cmd_ep == context->ep) { |
236 | mwifiex_usb_submit_rx_urb(context, size); | |
237 | } else { | |
238 | context->skb = NULL; | |
239 | if (atomic_read(&adapter->rx_pending) <= HIGH_RX_PENDING) | |
240 | mwifiex_usb_submit_rx_urb(context, size); | |
241 | } | |
4daffe35 AK |
242 | |
243 | return; | |
244 | } | |
245 | ||
246 | static void mwifiex_usb_tx_complete(struct urb *urb) | |
247 | { | |
248 | struct urb_context *context = (struct urb_context *)(urb->context); | |
249 | struct mwifiex_adapter *adapter = context->adapter; | |
250 | struct usb_card_rec *card = adapter->card; | |
251 | ||
252 | dev_dbg(adapter->dev, "%s: status: %d\n", __func__, urb->status); | |
253 | ||
254 | if (context->ep == card->tx_cmd_ep) { | |
255 | dev_dbg(adapter->dev, "%s: CMD\n", __func__); | |
256 | atomic_dec(&card->tx_cmd_urb_pending); | |
257 | adapter->cmd_sent = false; | |
258 | } else { | |
259 | dev_dbg(adapter->dev, "%s: DATA\n", __func__); | |
260 | atomic_dec(&card->tx_data_urb_pending); | |
47411a06 | 261 | mwifiex_write_data_complete(adapter, context->skb, 0, |
4daffe35 AK |
262 | urb->status ? -1 : 0); |
263 | } | |
264 | ||
265 | queue_work(adapter->workqueue, &adapter->main_work); | |
266 | ||
267 | return; | |
268 | } | |
269 | ||
270 | static int mwifiex_usb_submit_rx_urb(struct urb_context *ctx, int size) | |
271 | { | |
272 | struct mwifiex_adapter *adapter = ctx->adapter; | |
273 | struct usb_card_rec *card = (struct usb_card_rec *)adapter->card; | |
274 | ||
275 | if (card->rx_cmd_ep != ctx->ep) { | |
276 | ctx->skb = dev_alloc_skb(size); | |
277 | if (!ctx->skb) { | |
278 | dev_err(adapter->dev, | |
279 | "%s: dev_alloc_skb failed\n", __func__); | |
280 | return -ENOMEM; | |
281 | } | |
282 | } | |
283 | ||
284 | usb_fill_bulk_urb(ctx->urb, card->udev, | |
285 | usb_rcvbulkpipe(card->udev, ctx->ep), ctx->skb->data, | |
286 | size, mwifiex_usb_rx_complete, (void *)ctx); | |
287 | ||
288 | if (card->rx_cmd_ep == ctx->ep) | |
289 | atomic_inc(&card->rx_cmd_urb_pending); | |
290 | else | |
291 | atomic_inc(&card->rx_data_urb_pending); | |
292 | ||
293 | if (usb_submit_urb(ctx->urb, GFP_ATOMIC)) { | |
294 | dev_err(adapter->dev, "usb_submit_urb failed\n"); | |
295 | dev_kfree_skb_any(ctx->skb); | |
296 | ctx->skb = NULL; | |
297 | ||
298 | if (card->rx_cmd_ep == ctx->ep) | |
299 | atomic_dec(&card->rx_cmd_urb_pending); | |
300 | else | |
301 | atomic_dec(&card->rx_data_urb_pending); | |
302 | ||
303 | return -1; | |
304 | } | |
305 | ||
306 | return 0; | |
307 | } | |
308 | ||
309 | static void mwifiex_usb_free(struct usb_card_rec *card) | |
310 | { | |
311 | int i; | |
312 | ||
313 | if (atomic_read(&card->rx_cmd_urb_pending) && card->rx_cmd.urb) | |
314 | usb_kill_urb(card->rx_cmd.urb); | |
315 | ||
316 | usb_free_urb(card->rx_cmd.urb); | |
317 | card->rx_cmd.urb = NULL; | |
318 | ||
319 | if (atomic_read(&card->rx_data_urb_pending)) | |
320 | for (i = 0; i < MWIFIEX_RX_DATA_URB; i++) | |
321 | if (card->rx_data_list[i].urb) | |
322 | usb_kill_urb(card->rx_data_list[i].urb); | |
323 | ||
324 | for (i = 0; i < MWIFIEX_RX_DATA_URB; i++) { | |
325 | usb_free_urb(card->rx_data_list[i].urb); | |
326 | card->rx_data_list[i].urb = NULL; | |
327 | } | |
328 | ||
329 | for (i = 0; i < MWIFIEX_TX_DATA_URB; i++) { | |
330 | usb_free_urb(card->tx_data_list[i].urb); | |
331 | card->tx_data_list[i].urb = NULL; | |
332 | } | |
333 | ||
334 | usb_free_urb(card->tx_cmd.urb); | |
335 | card->tx_cmd.urb = NULL; | |
336 | ||
337 | return; | |
338 | } | |
339 | ||
340 | /* This function probes an mwifiex device and registers it. It allocates | |
341 | * the card structure, initiates the device registration and initialization | |
342 | * procedure by adding a logical interface. | |
343 | */ | |
344 | static int mwifiex_usb_probe(struct usb_interface *intf, | |
345 | const struct usb_device_id *id) | |
346 | { | |
347 | struct usb_device *udev = interface_to_usbdev(intf); | |
348 | struct usb_host_interface *iface_desc = intf->cur_altsetting; | |
349 | struct usb_endpoint_descriptor *epd; | |
350 | int ret, i; | |
351 | struct usb_card_rec *card; | |
352 | u16 id_vendor, id_product, bcd_device, bcd_usb; | |
353 | ||
354 | card = kzalloc(sizeof(struct usb_card_rec), GFP_KERNEL); | |
355 | if (!card) | |
356 | return -ENOMEM; | |
357 | ||
358 | id_vendor = le16_to_cpu(udev->descriptor.idVendor); | |
359 | id_product = le16_to_cpu(udev->descriptor.idProduct); | |
360 | bcd_device = le16_to_cpu(udev->descriptor.bcdDevice); | |
361 | bcd_usb = le16_to_cpu(udev->descriptor.bcdUSB); | |
362 | pr_debug("info: VID/PID = %X/%X, Boot2 version = %X\n", | |
363 | id_vendor, id_product, bcd_device); | |
364 | ||
365 | /* PID_1 is used for firmware downloading only */ | |
68458ded | 366 | switch (id_product) { |
9e6f3f47 | 367 | case USB8766_PID_1: |
68458ded | 368 | case USB8797_PID_1: |
eaa3d9fa | 369 | case USB8801_PID_1: |
68458ded YAP |
370 | case USB8897_PID_1: |
371 | card->usb_boot_state = USB8XXX_FW_DNLD; | |
372 | break; | |
9e6f3f47 | 373 | case USB8766_PID_2: |
68458ded | 374 | case USB8797_PID_2: |
eaa3d9fa | 375 | case USB8801_PID_2: |
68458ded YAP |
376 | case USB8897_PID_2: |
377 | card->usb_boot_state = USB8XXX_FW_READY; | |
378 | break; | |
379 | default: | |
fe3881cf | 380 | pr_warn("unknown id_product %#x\n", id_product); |
68458ded YAP |
381 | card->usb_boot_state = USB8XXX_FW_DNLD; |
382 | break; | |
383 | } | |
4daffe35 AK |
384 | |
385 | card->udev = udev; | |
386 | card->intf = intf; | |
387 | ||
69797838 | 388 | pr_debug("info: bcdUSB=%#x Device Class=%#x SubClass=%#x Protocol=%#x\n", |
4daffe35 AK |
389 | udev->descriptor.bcdUSB, udev->descriptor.bDeviceClass, |
390 | udev->descriptor.bDeviceSubClass, | |
391 | udev->descriptor.bDeviceProtocol); | |
392 | ||
393 | for (i = 0; i < iface_desc->desc.bNumEndpoints; ++i) { | |
394 | epd = &iface_desc->endpoint[i].desc; | |
395 | if (usb_endpoint_dir_in(epd) && | |
396 | usb_endpoint_num(epd) == MWIFIEX_USB_EP_CMD_EVENT && | |
397 | usb_endpoint_xfer_bulk(epd)) { | |
398 | pr_debug("info: bulk IN: max pkt size: %d, addr: %d\n", | |
399 | le16_to_cpu(epd->wMaxPacketSize), | |
400 | epd->bEndpointAddress); | |
401 | card->rx_cmd_ep = usb_endpoint_num(epd); | |
402 | atomic_set(&card->rx_cmd_urb_pending, 0); | |
403 | } | |
404 | if (usb_endpoint_dir_in(epd) && | |
405 | usb_endpoint_num(epd) == MWIFIEX_USB_EP_DATA && | |
406 | usb_endpoint_xfer_bulk(epd)) { | |
407 | pr_debug("info: bulk IN: max pkt size: %d, addr: %d\n", | |
408 | le16_to_cpu(epd->wMaxPacketSize), | |
409 | epd->bEndpointAddress); | |
410 | card->rx_data_ep = usb_endpoint_num(epd); | |
411 | atomic_set(&card->rx_data_urb_pending, 0); | |
412 | } | |
413 | if (usb_endpoint_dir_out(epd) && | |
414 | usb_endpoint_num(epd) == MWIFIEX_USB_EP_DATA && | |
415 | usb_endpoint_xfer_bulk(epd)) { | |
416 | pr_debug("info: bulk OUT: max pkt size: %d, addr: %d\n", | |
417 | le16_to_cpu(epd->wMaxPacketSize), | |
418 | epd->bEndpointAddress); | |
419 | card->tx_data_ep = usb_endpoint_num(epd); | |
420 | atomic_set(&card->tx_data_urb_pending, 0); | |
421 | } | |
422 | if (usb_endpoint_dir_out(epd) && | |
423 | usb_endpoint_num(epd) == MWIFIEX_USB_EP_CMD_EVENT && | |
424 | usb_endpoint_xfer_bulk(epd)) { | |
425 | pr_debug("info: bulk OUT: max pkt size: %d, addr: %d\n", | |
426 | le16_to_cpu(epd->wMaxPacketSize), | |
427 | epd->bEndpointAddress); | |
428 | card->tx_cmd_ep = usb_endpoint_num(epd); | |
429 | atomic_set(&card->tx_cmd_urb_pending, 0); | |
430 | card->bulk_out_maxpktsize = | |
431 | le16_to_cpu(epd->wMaxPacketSize); | |
432 | } | |
433 | } | |
434 | ||
435 | usb_set_intfdata(intf, card); | |
436 | ||
437 | ret = mwifiex_add_card(card, &add_remove_card_sem, &usb_ops, | |
438 | MWIFIEX_USB); | |
439 | if (ret) { | |
440 | pr_err("%s: mwifiex_add_card failed: %d\n", __func__, ret); | |
441 | usb_reset_device(udev); | |
442 | kfree(card); | |
443 | return ret; | |
444 | } | |
445 | ||
446 | usb_get_dev(udev); | |
447 | ||
448 | return 0; | |
449 | } | |
450 | ||
451 | /* Kernel needs to suspend all functions separately. Therefore all | |
452 | * registered functions must have drivers with suspend and resume | |
453 | * methods. Failing that the kernel simply removes the whole card. | |
454 | * | |
455 | * If already not suspended, this function allocates and sends a | |
456 | * 'host sleep activate' request to the firmware and turns off the traffic. | |
457 | */ | |
458 | static int mwifiex_usb_suspend(struct usb_interface *intf, pm_message_t message) | |
459 | { | |
460 | struct usb_card_rec *card = usb_get_intfdata(intf); | |
461 | struct mwifiex_adapter *adapter; | |
462 | int i; | |
463 | ||
464 | if (!card || !card->adapter) { | |
465 | pr_err("%s: card or card->adapter is NULL\n", __func__); | |
466 | return 0; | |
467 | } | |
468 | adapter = card->adapter; | |
469 | ||
470 | if (unlikely(adapter->is_suspended)) | |
471 | dev_warn(adapter->dev, "Device already suspended\n"); | |
472 | ||
473 | mwifiex_enable_hs(adapter); | |
474 | ||
475 | /* 'is_suspended' flag indicates device is suspended. | |
476 | * It must be set here before the usb_kill_urb() calls. Reason | |
477 | * is in the complete handlers, urb->status(= -ENOENT) and | |
478 | * this flag is used in combination to distinguish between a | |
479 | * 'suspended' state and a 'disconnect' one. | |
480 | */ | |
481 | adapter->is_suspended = true; | |
c0dbba66 | 482 | adapter->hs_enabling = false; |
4daffe35 | 483 | |
4daffe35 AK |
484 | if (atomic_read(&card->rx_cmd_urb_pending) && card->rx_cmd.urb) |
485 | usb_kill_urb(card->rx_cmd.urb); | |
486 | ||
487 | if (atomic_read(&card->rx_data_urb_pending)) | |
488 | for (i = 0; i < MWIFIEX_RX_DATA_URB; i++) | |
489 | if (card->rx_data_list[i].urb) | |
490 | usb_kill_urb(card->rx_data_list[i].urb); | |
491 | ||
492 | for (i = 0; i < MWIFIEX_TX_DATA_URB; i++) | |
493 | if (card->tx_data_list[i].urb) | |
494 | usb_kill_urb(card->tx_data_list[i].urb); | |
495 | ||
496 | if (card->tx_cmd.urb) | |
497 | usb_kill_urb(card->tx_cmd.urb); | |
498 | ||
499 | return 0; | |
500 | } | |
501 | ||
502 | /* Kernel needs to suspend all functions separately. Therefore all | |
503 | * registered functions must have drivers with suspend and resume | |
504 | * methods. Failing that the kernel simply removes the whole card. | |
505 | * | |
506 | * If already not resumed, this function turns on the traffic and | |
507 | * sends a 'host sleep cancel' request to the firmware. | |
508 | */ | |
509 | static int mwifiex_usb_resume(struct usb_interface *intf) | |
510 | { | |
511 | struct usb_card_rec *card = usb_get_intfdata(intf); | |
512 | struct mwifiex_adapter *adapter; | |
513 | int i; | |
514 | ||
515 | if (!card || !card->adapter) { | |
516 | pr_err("%s: card or card->adapter is NULL\n", __func__); | |
517 | return 0; | |
518 | } | |
519 | adapter = card->adapter; | |
520 | ||
521 | if (unlikely(!adapter->is_suspended)) { | |
522 | dev_warn(adapter->dev, "Device already resumed\n"); | |
523 | return 0; | |
524 | } | |
525 | ||
526 | /* Indicate device resumed. The netdev queue will be resumed only | |
527 | * after the urbs have been re-submitted | |
528 | */ | |
529 | adapter->is_suspended = false; | |
530 | ||
531 | if (!atomic_read(&card->rx_data_urb_pending)) | |
532 | for (i = 0; i < MWIFIEX_RX_DATA_URB; i++) | |
533 | mwifiex_usb_submit_rx_urb(&card->rx_data_list[i], | |
534 | MWIFIEX_RX_DATA_BUF_SIZE); | |
535 | ||
536 | if (!atomic_read(&card->rx_cmd_urb_pending)) { | |
537 | card->rx_cmd.skb = dev_alloc_skb(MWIFIEX_RX_CMD_BUF_SIZE); | |
538 | if (card->rx_cmd.skb) | |
539 | mwifiex_usb_submit_rx_urb(&card->rx_cmd, | |
540 | MWIFIEX_RX_CMD_BUF_SIZE); | |
541 | } | |
542 | ||
4daffe35 AK |
543 | /* Disable Host Sleep */ |
544 | if (adapter->hs_activated) | |
545 | mwifiex_cancel_hs(mwifiex_get_priv(adapter, | |
546 | MWIFIEX_BSS_ROLE_ANY), | |
547 | MWIFIEX_ASYNC_CMD); | |
548 | ||
4daffe35 AK |
549 | return 0; |
550 | } | |
551 | ||
552 | static void mwifiex_usb_disconnect(struct usb_interface *intf) | |
553 | { | |
554 | struct usb_card_rec *card = usb_get_intfdata(intf); | |
3fffd7c1 | 555 | struct mwifiex_adapter *adapter; |
4daffe35 | 556 | |
3fffd7c1 AK |
557 | if (!card || !card->adapter) { |
558 | pr_err("%s: card or card->adapter is NULL\n", __func__); | |
4daffe35 AK |
559 | return; |
560 | } | |
561 | ||
3fffd7c1 AK |
562 | adapter = card->adapter; |
563 | if (!adapter->priv_num) | |
564 | return; | |
4daffe35 | 565 | |
3fffd7c1 AK |
566 | if (user_rmmod) { |
567 | #ifdef CONFIG_PM | |
568 | if (adapter->is_suspended) | |
569 | mwifiex_usb_resume(intf); | |
570 | #endif | |
571 | ||
572 | mwifiex_deauthenticate_all(adapter); | |
353d2a69 | 573 | |
3fffd7c1 AK |
574 | mwifiex_init_shutdown_fw(mwifiex_get_priv(adapter, |
575 | MWIFIEX_BSS_ROLE_ANY), | |
576 | MWIFIEX_FUNC_SHUTDOWN); | |
353d2a69 | 577 | } |
4daffe35 | 578 | |
3fffd7c1 AK |
579 | mwifiex_usb_free(card); |
580 | ||
581 | dev_dbg(adapter->dev, "%s: removing card\n", __func__); | |
582 | mwifiex_remove_card(adapter, &add_remove_card_sem); | |
583 | ||
4daffe35 AK |
584 | usb_set_intfdata(intf, NULL); |
585 | usb_put_dev(interface_to_usbdev(intf)); | |
586 | kfree(card); | |
587 | ||
588 | return; | |
589 | } | |
590 | ||
591 | static struct usb_driver mwifiex_usb_driver = { | |
e4ceb0f4 | 592 | .name = "mwifiex_usb", |
4daffe35 AK |
593 | .probe = mwifiex_usb_probe, |
594 | .disconnect = mwifiex_usb_disconnect, | |
595 | .id_table = mwifiex_usb_table, | |
596 | .suspend = mwifiex_usb_suspend, | |
597 | .resume = mwifiex_usb_resume, | |
3fffd7c1 | 598 | .soft_unbind = 1, |
4daffe35 AK |
599 | }; |
600 | ||
601 | static int mwifiex_usb_tx_init(struct mwifiex_adapter *adapter) | |
602 | { | |
603 | struct usb_card_rec *card = (struct usb_card_rec *)adapter->card; | |
604 | int i; | |
605 | ||
606 | card->tx_cmd.adapter = adapter; | |
607 | card->tx_cmd.ep = card->tx_cmd_ep; | |
608 | ||
609 | card->tx_cmd.urb = usb_alloc_urb(0, GFP_KERNEL); | |
610 | if (!card->tx_cmd.urb) { | |
611 | dev_err(adapter->dev, "tx_cmd.urb allocation failed\n"); | |
612 | return -ENOMEM; | |
613 | } | |
614 | ||
615 | card->tx_data_ix = 0; | |
616 | ||
617 | for (i = 0; i < MWIFIEX_TX_DATA_URB; i++) { | |
618 | card->tx_data_list[i].adapter = adapter; | |
619 | card->tx_data_list[i].ep = card->tx_data_ep; | |
620 | ||
621 | card->tx_data_list[i].urb = usb_alloc_urb(0, GFP_KERNEL); | |
622 | if (!card->tx_data_list[i].urb) { | |
623 | dev_err(adapter->dev, | |
624 | "tx_data_list[] urb allocation failed\n"); | |
625 | return -ENOMEM; | |
626 | } | |
627 | } | |
628 | ||
629 | return 0; | |
630 | } | |
631 | ||
632 | static int mwifiex_usb_rx_init(struct mwifiex_adapter *adapter) | |
633 | { | |
634 | struct usb_card_rec *card = (struct usb_card_rec *)adapter->card; | |
635 | int i; | |
636 | ||
637 | card->rx_cmd.adapter = adapter; | |
638 | card->rx_cmd.ep = card->rx_cmd_ep; | |
639 | ||
640 | card->rx_cmd.urb = usb_alloc_urb(0, GFP_KERNEL); | |
641 | if (!card->rx_cmd.urb) { | |
642 | dev_err(adapter->dev, "rx_cmd.urb allocation failed\n"); | |
643 | return -ENOMEM; | |
644 | } | |
645 | ||
646 | card->rx_cmd.skb = dev_alloc_skb(MWIFIEX_RX_CMD_BUF_SIZE); | |
647 | if (!card->rx_cmd.skb) { | |
648 | dev_err(adapter->dev, "rx_cmd.skb allocation failed\n"); | |
649 | return -ENOMEM; | |
650 | } | |
651 | ||
652 | if (mwifiex_usb_submit_rx_urb(&card->rx_cmd, MWIFIEX_RX_CMD_BUF_SIZE)) | |
653 | return -1; | |
654 | ||
655 | for (i = 0; i < MWIFIEX_RX_DATA_URB; i++) { | |
656 | card->rx_data_list[i].adapter = adapter; | |
657 | card->rx_data_list[i].ep = card->rx_data_ep; | |
658 | ||
659 | card->rx_data_list[i].urb = usb_alloc_urb(0, GFP_KERNEL); | |
660 | if (!card->rx_data_list[i].urb) { | |
661 | dev_err(adapter->dev, | |
662 | "rx_data_list[] urb allocation failed\n"); | |
663 | return -1; | |
664 | } | |
665 | if (mwifiex_usb_submit_rx_urb(&card->rx_data_list[i], | |
666 | MWIFIEX_RX_DATA_BUF_SIZE)) | |
667 | return -1; | |
668 | } | |
669 | ||
670 | return 0; | |
671 | } | |
672 | ||
673 | static int mwifiex_write_data_sync(struct mwifiex_adapter *adapter, u8 *pbuf, | |
674 | u32 *len, u8 ep, u32 timeout) | |
675 | { | |
676 | struct usb_card_rec *card = adapter->card; | |
677 | int actual_length, ret; | |
678 | ||
679 | if (!(*len % card->bulk_out_maxpktsize)) | |
680 | (*len)++; | |
681 | ||
682 | /* Send the data block */ | |
683 | ret = usb_bulk_msg(card->udev, usb_sndbulkpipe(card->udev, ep), pbuf, | |
684 | *len, &actual_length, timeout); | |
685 | if (ret) { | |
686 | dev_err(adapter->dev, "usb_bulk_msg for tx failed: %d\n", ret); | |
5b2e2ecc | 687 | return ret; |
4daffe35 AK |
688 | } |
689 | ||
690 | *len = actual_length; | |
691 | ||
692 | return ret; | |
693 | } | |
694 | ||
695 | static int mwifiex_read_data_sync(struct mwifiex_adapter *adapter, u8 *pbuf, | |
696 | u32 *len, u8 ep, u32 timeout) | |
697 | { | |
698 | struct usb_card_rec *card = adapter->card; | |
699 | int actual_length, ret; | |
700 | ||
701 | /* Receive the data response */ | |
702 | ret = usb_bulk_msg(card->udev, usb_rcvbulkpipe(card->udev, ep), pbuf, | |
703 | *len, &actual_length, timeout); | |
704 | if (ret) { | |
705 | dev_err(adapter->dev, "usb_bulk_msg for rx failed: %d\n", ret); | |
5b2e2ecc | 706 | return ret; |
4daffe35 AK |
707 | } |
708 | ||
709 | *len = actual_length; | |
710 | ||
711 | return ret; | |
712 | } | |
713 | ||
714 | /* This function write a command/data packet to card. */ | |
715 | static int mwifiex_usb_host_to_card(struct mwifiex_adapter *adapter, u8 ep, | |
716 | struct sk_buff *skb, | |
717 | struct mwifiex_tx_param *tx_param) | |
718 | { | |
719 | struct usb_card_rec *card = adapter->card; | |
720 | struct urb_context *context; | |
721 | u8 *data = (u8 *)skb->data; | |
722 | struct urb *tx_urb; | |
723 | ||
724 | if (adapter->is_suspended) { | |
725 | dev_err(adapter->dev, | |
726 | "%s: not allowed while suspended\n", __func__); | |
727 | return -1; | |
728 | } | |
729 | ||
730 | if (adapter->surprise_removed) { | |
731 | dev_err(adapter->dev, "%s: device removed\n", __func__); | |
732 | return -1; | |
733 | } | |
734 | ||
735 | if (ep == card->tx_data_ep && | |
736 | atomic_read(&card->tx_data_urb_pending) >= MWIFIEX_TX_DATA_URB) { | |
737 | return -EBUSY; | |
738 | } | |
739 | ||
740 | dev_dbg(adapter->dev, "%s: ep=%d\n", __func__, ep); | |
741 | ||
742 | if (ep == card->tx_cmd_ep) { | |
743 | context = &card->tx_cmd; | |
744 | } else { | |
745 | if (card->tx_data_ix >= MWIFIEX_TX_DATA_URB) | |
746 | card->tx_data_ix = 0; | |
747 | context = &card->tx_data_list[card->tx_data_ix++]; | |
748 | } | |
749 | ||
750 | context->adapter = adapter; | |
751 | context->ep = ep; | |
752 | context->skb = skb; | |
753 | tx_urb = context->urb; | |
754 | ||
755 | usb_fill_bulk_urb(tx_urb, card->udev, usb_sndbulkpipe(card->udev, ep), | |
756 | data, skb->len, mwifiex_usb_tx_complete, | |
757 | (void *)context); | |
758 | ||
759 | tx_urb->transfer_flags |= URB_ZERO_PACKET; | |
760 | ||
761 | if (ep == card->tx_cmd_ep) | |
762 | atomic_inc(&card->tx_cmd_urb_pending); | |
763 | else | |
764 | atomic_inc(&card->tx_data_urb_pending); | |
765 | ||
766 | if (usb_submit_urb(tx_urb, GFP_ATOMIC)) { | |
767 | dev_err(adapter->dev, "%s: usb_submit_urb failed\n", __func__); | |
768 | if (ep == card->tx_cmd_ep) { | |
769 | atomic_dec(&card->tx_cmd_urb_pending); | |
770 | } else { | |
771 | atomic_dec(&card->tx_data_urb_pending); | |
772 | if (card->tx_data_ix) | |
773 | card->tx_data_ix--; | |
774 | else | |
775 | card->tx_data_ix = MWIFIEX_TX_DATA_URB; | |
776 | } | |
777 | ||
778 | return -1; | |
779 | } else { | |
780 | if (ep == card->tx_data_ep && | |
781 | atomic_read(&card->tx_data_urb_pending) == | |
782 | MWIFIEX_TX_DATA_URB) | |
783 | return -ENOSR; | |
784 | } | |
785 | ||
786 | return -EINPROGRESS; | |
787 | } | |
788 | ||
789 | /* This function register usb device and initialize parameter. */ | |
790 | static int mwifiex_register_dev(struct mwifiex_adapter *adapter) | |
791 | { | |
792 | struct usb_card_rec *card = (struct usb_card_rec *)adapter->card; | |
793 | ||
794 | card->adapter = adapter; | |
795 | adapter->dev = &card->udev->dev; | |
4daffe35 | 796 | |
68458ded YAP |
797 | switch (le16_to_cpu(card->udev->descriptor.idProduct)) { |
798 | case USB8897_PID_1: | |
799 | case USB8897_PID_2: | |
828cf222 | 800 | adapter->tx_buf_size = MWIFIEX_TX_DATA_BUF_SIZE_4K; |
68458ded | 801 | strcpy(adapter->fw_name, USB8897_DEFAULT_FW_NAME); |
1fe192d8 | 802 | adapter->ext_scan = true; |
68458ded | 803 | break; |
9e6f3f47 KE |
804 | case USB8766_PID_1: |
805 | case USB8766_PID_2: | |
806 | adapter->tx_buf_size = MWIFIEX_TX_DATA_BUF_SIZE_2K; | |
807 | strcpy(adapter->fw_name, USB8766_DEFAULT_FW_NAME); | |
1fe192d8 | 808 | adapter->ext_scan = true; |
9e6f3f47 | 809 | break; |
eaa3d9fa YAP |
810 | case USB8801_PID_1: |
811 | case USB8801_PID_2: | |
812 | adapter->tx_buf_size = MWIFIEX_TX_DATA_BUF_SIZE_2K; | |
813 | strcpy(adapter->fw_name, USB8801_DEFAULT_FW_NAME); | |
1fe192d8 | 814 | adapter->ext_scan = false; |
eaa3d9fa | 815 | break; |
68458ded YAP |
816 | case USB8797_PID_1: |
817 | case USB8797_PID_2: | |
818 | default: | |
828cf222 | 819 | adapter->tx_buf_size = MWIFIEX_TX_DATA_BUF_SIZE_2K; |
68458ded YAP |
820 | strcpy(adapter->fw_name, USB8797_DEFAULT_FW_NAME); |
821 | break; | |
822 | } | |
823 | ||
4daffe35 AK |
824 | return 0; |
825 | } | |
826 | ||
2739a95d AK |
827 | static void mwifiex_unregister_dev(struct mwifiex_adapter *adapter) |
828 | { | |
829 | struct usb_card_rec *card = (struct usb_card_rec *)adapter->card; | |
830 | ||
353d2a69 | 831 | card->adapter = NULL; |
2739a95d AK |
832 | } |
833 | ||
4daffe35 AK |
834 | static int mwifiex_prog_fw_w_helper(struct mwifiex_adapter *adapter, |
835 | struct mwifiex_fw_image *fw) | |
836 | { | |
837 | int ret = 0; | |
838 | u8 *firmware = fw->fw_buf, *recv_buff; | |
68458ded | 839 | u32 retries = USB8XXX_FW_MAX_RETRY, dlen; |
4daffe35 AK |
840 | u32 fw_seqnum = 0, tlen = 0, dnld_cmd = 0; |
841 | struct fw_data *fwdata; | |
842 | struct fw_sync_header sync_fw; | |
843 | u8 check_winner = 1; | |
844 | ||
845 | if (!firmware) { | |
846 | dev_err(adapter->dev, | |
847 | "No firmware image found! Terminating download\n"); | |
848 | ret = -1; | |
849 | goto fw_exit; | |
850 | } | |
851 | ||
852 | /* Allocate memory for transmit */ | |
853 | fwdata = kzalloc(FW_DNLD_TX_BUF_SIZE, GFP_KERNEL); | |
854 | if (!fwdata) | |
855 | goto fw_exit; | |
856 | ||
857 | /* Allocate memory for receive */ | |
858 | recv_buff = kzalloc(FW_DNLD_RX_BUF_SIZE, GFP_KERNEL); | |
859 | if (!recv_buff) | |
860 | goto cleanup; | |
861 | ||
862 | do { | |
863 | /* Send pseudo data to check winner status first */ | |
864 | if (check_winner) { | |
865 | memset(&fwdata->fw_hdr, 0, sizeof(struct fw_header)); | |
866 | dlen = 0; | |
867 | } else { | |
868 | /* copy the header of the fw_data to get the length */ | |
fc40ca92 SL |
869 | memcpy(&fwdata->fw_hdr, &firmware[tlen], |
870 | sizeof(struct fw_header)); | |
4daffe35 AK |
871 | |
872 | dlen = le32_to_cpu(fwdata->fw_hdr.data_len); | |
873 | dnld_cmd = le32_to_cpu(fwdata->fw_hdr.dnld_cmd); | |
874 | tlen += sizeof(struct fw_header); | |
875 | ||
fc40ca92 | 876 | memcpy(fwdata->data, &firmware[tlen], dlen); |
4daffe35 AK |
877 | |
878 | fwdata->seq_num = cpu_to_le32(fw_seqnum); | |
879 | tlen += dlen; | |
880 | } | |
881 | ||
882 | /* If the send/receive fails or CRC occurs then retry */ | |
883 | while (retries--) { | |
884 | u8 *buf = (u8 *)fwdata; | |
885 | u32 len = FW_DATA_XMIT_SIZE; | |
886 | ||
887 | /* send the firmware block */ | |
888 | ret = mwifiex_write_data_sync(adapter, buf, &len, | |
889 | MWIFIEX_USB_EP_CMD_EVENT, | |
890 | MWIFIEX_USB_TIMEOUT); | |
891 | if (ret) { | |
892 | dev_err(adapter->dev, | |
893 | "write_data_sync: failed: %d\n", ret); | |
894 | continue; | |
895 | } | |
896 | ||
897 | buf = recv_buff; | |
898 | len = FW_DNLD_RX_BUF_SIZE; | |
899 | ||
900 | /* Receive the firmware block response */ | |
901 | ret = mwifiex_read_data_sync(adapter, buf, &len, | |
902 | MWIFIEX_USB_EP_CMD_EVENT, | |
903 | MWIFIEX_USB_TIMEOUT); | |
904 | if (ret) { | |
905 | dev_err(adapter->dev, | |
906 | "read_data_sync: failed: %d\n", ret); | |
907 | continue; | |
908 | } | |
909 | ||
910 | memcpy(&sync_fw, recv_buff, | |
911 | sizeof(struct fw_sync_header)); | |
912 | ||
913 | /* check 1st firmware block resp for highest bit set */ | |
914 | if (check_winner) { | |
915 | if (le32_to_cpu(sync_fw.cmd) & 0x80000000) { | |
916 | dev_warn(adapter->dev, | |
917 | "USB is not the winner %#x\n", | |
918 | sync_fw.cmd); | |
919 | ||
920 | /* returning success */ | |
921 | ret = 0; | |
922 | goto cleanup; | |
923 | } | |
924 | ||
925 | dev_dbg(adapter->dev, | |
926 | "USB is the winner, start to download FW\n"); | |
927 | ||
928 | check_winner = 0; | |
929 | break; | |
930 | } | |
931 | ||
932 | /* check the firmware block response for CRC errors */ | |
933 | if (sync_fw.cmd) { | |
934 | dev_err(adapter->dev, | |
935 | "FW received block with CRC %#x\n", | |
936 | sync_fw.cmd); | |
937 | ret = -1; | |
938 | continue; | |
939 | } | |
940 | ||
68458ded | 941 | retries = USB8XXX_FW_MAX_RETRY; |
4daffe35 AK |
942 | break; |
943 | } | |
944 | fw_seqnum++; | |
945 | } while ((dnld_cmd != FW_HAS_LAST_BLOCK) && retries); | |
946 | ||
947 | cleanup: | |
ca5b20e6 AK |
948 | dev_notice(adapter->dev, |
949 | "info: FW download over, size %d bytes\n", tlen); | |
4daffe35 AK |
950 | |
951 | kfree(recv_buff); | |
952 | kfree(fwdata); | |
953 | ||
954 | if (retries) | |
955 | ret = 0; | |
956 | fw_exit: | |
957 | return ret; | |
958 | } | |
959 | ||
960 | static int mwifiex_usb_dnld_fw(struct mwifiex_adapter *adapter, | |
961 | struct mwifiex_fw_image *fw) | |
962 | { | |
963 | int ret; | |
964 | struct usb_card_rec *card = (struct usb_card_rec *)adapter->card; | |
965 | ||
68458ded | 966 | if (card->usb_boot_state == USB8XXX_FW_DNLD) { |
4daffe35 AK |
967 | ret = mwifiex_prog_fw_w_helper(adapter, fw); |
968 | if (ret) | |
969 | return -1; | |
970 | ||
971 | /* Boot state changes after successful firmware download */ | |
68458ded | 972 | if (card->usb_boot_state == USB8XXX_FW_DNLD) |
4daffe35 AK |
973 | return -1; |
974 | } | |
975 | ||
976 | ret = mwifiex_usb_rx_init(adapter); | |
977 | if (!ret) | |
978 | ret = mwifiex_usb_tx_init(adapter); | |
979 | ||
980 | return ret; | |
981 | } | |
982 | ||
983 | static void mwifiex_submit_rx_urb(struct mwifiex_adapter *adapter, u8 ep) | |
984 | { | |
985 | struct usb_card_rec *card = (struct usb_card_rec *)adapter->card; | |
986 | ||
987 | skb_push(card->rx_cmd.skb, INTF_HEADER_LEN); | |
988 | if ((ep == card->rx_cmd_ep) && | |
989 | (!atomic_read(&card->rx_cmd_urb_pending))) | |
990 | mwifiex_usb_submit_rx_urb(&card->rx_cmd, | |
991 | MWIFIEX_RX_CMD_BUF_SIZE); | |
992 | ||
993 | return; | |
994 | } | |
995 | ||
996 | static int mwifiex_usb_cmd_event_complete(struct mwifiex_adapter *adapter, | |
997 | struct sk_buff *skb) | |
998 | { | |
4daffe35 AK |
999 | mwifiex_submit_rx_urb(adapter, MWIFIEX_USB_EP_CMD_EVENT); |
1000 | ||
1001 | return 0; | |
1002 | } | |
1003 | ||
4daffe35 AK |
1004 | /* This function wakes up the card. */ |
1005 | static int mwifiex_pm_wakeup_card(struct mwifiex_adapter *adapter) | |
1006 | { | |
1007 | /* Simulation of HS_AWAKE event */ | |
1008 | adapter->pm_wakeup_fw_try = false; | |
6e9344fd | 1009 | del_timer(&adapter->wakeup_timer); |
4daffe35 AK |
1010 | adapter->pm_wakeup_card_req = false; |
1011 | adapter->ps_state = PS_STATE_AWAKE; | |
1012 | ||
1013 | return 0; | |
1014 | } | |
1015 | ||
cf6a64fd AK |
1016 | static void mwifiex_usb_submit_rem_rx_urbs(struct mwifiex_adapter *adapter) |
1017 | { | |
1018 | struct usb_card_rec *card = (struct usb_card_rec *)adapter->card; | |
1019 | int i; | |
1020 | struct urb_context *ctx; | |
1021 | ||
1022 | for (i = 0; i < MWIFIEX_RX_DATA_URB; i++) { | |
1023 | if (card->rx_data_list[i].skb) | |
1024 | continue; | |
1025 | ctx = &card->rx_data_list[i]; | |
1026 | mwifiex_usb_submit_rx_urb(ctx, MWIFIEX_RX_DATA_BUF_SIZE); | |
1027 | } | |
1028 | } | |
1029 | ||
61754303 XH |
1030 | /* This function is called after the card has woken up. */ |
1031 | static inline int | |
1032 | mwifiex_pm_wakeup_card_complete(struct mwifiex_adapter *adapter) | |
1033 | { | |
1034 | return 0; | |
1035 | } | |
1036 | ||
4daffe35 AK |
1037 | static struct mwifiex_if_ops usb_ops = { |
1038 | .register_dev = mwifiex_register_dev, | |
2739a95d | 1039 | .unregister_dev = mwifiex_unregister_dev, |
4daffe35 AK |
1040 | .wakeup = mwifiex_pm_wakeup_card, |
1041 | .wakeup_complete = mwifiex_pm_wakeup_card_complete, | |
1042 | ||
1043 | /* USB specific */ | |
1044 | .dnld_fw = mwifiex_usb_dnld_fw, | |
1045 | .cmdrsp_complete = mwifiex_usb_cmd_event_complete, | |
1046 | .event_complete = mwifiex_usb_cmd_event_complete, | |
4daffe35 | 1047 | .host_to_card = mwifiex_usb_host_to_card, |
cf6a64fd | 1048 | .submit_rem_rx_urbs = mwifiex_usb_submit_rem_rx_urbs, |
4daffe35 AK |
1049 | }; |
1050 | ||
1051 | /* This function initializes the USB driver module. | |
1052 | * | |
1053 | * This initiates the semaphore and registers the device with | |
1054 | * USB bus. | |
1055 | */ | |
1056 | static int mwifiex_usb_init_module(void) | |
1057 | { | |
1058 | int ret; | |
1059 | ||
1060 | pr_debug("Marvell USB8797 Driver\n"); | |
1061 | ||
1062 | sema_init(&add_remove_card_sem, 1); | |
1063 | ||
1064 | ret = usb_register(&mwifiex_usb_driver); | |
1065 | if (ret) | |
1066 | pr_err("Driver register failed!\n"); | |
1067 | else | |
1068 | pr_debug("info: Driver registered successfully!\n"); | |
1069 | ||
1070 | return ret; | |
1071 | } | |
1072 | ||
1073 | /* This function cleans up the USB driver. | |
1074 | * | |
1075 | * The following major steps are followed in .disconnect for cleanup: | |
1076 | * - Resume the device if its suspended | |
1077 | * - Disconnect the device if connected | |
1078 | * - Shutdown the firmware | |
1079 | * - Unregister the device from USB bus. | |
1080 | */ | |
1081 | static void mwifiex_usb_cleanup_module(void) | |
1082 | { | |
1083 | if (!down_interruptible(&add_remove_card_sem)) | |
1084 | up(&add_remove_card_sem); | |
1085 | ||
3fffd7c1 AK |
1086 | /* set the flag as user is removing this module */ |
1087 | user_rmmod = 1; | |
4daffe35 AK |
1088 | |
1089 | usb_deregister(&mwifiex_usb_driver); | |
1090 | } | |
1091 | ||
1092 | module_init(mwifiex_usb_init_module); | |
1093 | module_exit(mwifiex_usb_cleanup_module); | |
1094 | ||
1095 | MODULE_AUTHOR("Marvell International Ltd."); | |
1096 | MODULE_DESCRIPTION("Marvell WiFi-Ex USB Driver version" USB_VERSION); | |
1097 | MODULE_VERSION(USB_VERSION); | |
1098 | MODULE_LICENSE("GPL v2"); | |
9e6f3f47 | 1099 | MODULE_FIRMWARE(USB8766_DEFAULT_FW_NAME); |
68458ded | 1100 | MODULE_FIRMWARE(USB8797_DEFAULT_FW_NAME); |
eaa3d9fa | 1101 | MODULE_FIRMWARE(USB8801_DEFAULT_FW_NAME); |
68458ded | 1102 | MODULE_FIRMWARE(USB8897_DEFAULT_FW_NAME); |