Commit | Line | Data |
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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 | { | |
4daffe35 AK |
63 | u32 recv_type; |
64 | __le32 tmp; | |
8311f0da | 65 | int ret; |
4daffe35 AK |
66 | |
67 | if (adapter->hs_activated) | |
68 | mwifiex_process_hs_config(adapter); | |
69 | ||
70 | if (skb->len < INTF_HEADER_LEN) { | |
acebe8c1 ZL |
71 | mwifiex_dbg(adapter, ERROR, |
72 | "%s: invalid skb->len\n", __func__); | |
4daffe35 AK |
73 | return -1; |
74 | } | |
75 | ||
76 | switch (ep) { | |
77 | case MWIFIEX_USB_EP_CMD_EVENT: | |
acebe8c1 ZL |
78 | mwifiex_dbg(adapter, EVENT, |
79 | "%s: EP_CMD_EVENT\n", __func__); | |
4daffe35 AK |
80 | skb_copy_from_linear_data(skb, &tmp, INTF_HEADER_LEN); |
81 | recv_type = le32_to_cpu(tmp); | |
82 | skb_pull(skb, INTF_HEADER_LEN); | |
83 | ||
84 | switch (recv_type) { | |
85 | case MWIFIEX_USB_TYPE_CMD: | |
86 | if (skb->len > MWIFIEX_SIZE_OF_CMD_BUFFER) { | |
acebe8c1 ZL |
87 | mwifiex_dbg(adapter, ERROR, |
88 | "CMD: skb->len too large\n"); | |
8311f0da AK |
89 | ret = -1; |
90 | goto exit_restore_skb; | |
4daffe35 | 91 | } else if (!adapter->curr_cmd) { |
acebe8c1 | 92 | mwifiex_dbg(adapter, WARN, "CMD: no curr_cmd\n"); |
4daffe35 AK |
93 | if (adapter->ps_state == PS_STATE_SLEEP_CFM) { |
94 | mwifiex_process_sleep_confirm_resp( | |
95 | adapter, skb->data, | |
96 | skb->len); | |
8311f0da AK |
97 | ret = 0; |
98 | goto exit_restore_skb; | |
4daffe35 | 99 | } |
8311f0da AK |
100 | ret = -1; |
101 | goto exit_restore_skb; | |
4daffe35 AK |
102 | } |
103 | ||
104 | adapter->curr_cmd->resp_skb = skb; | |
105 | adapter->cmd_resp_received = true; | |
106 | break; | |
107 | case MWIFIEX_USB_TYPE_EVENT: | |
108 | if (skb->len < sizeof(u32)) { | |
acebe8c1 ZL |
109 | mwifiex_dbg(adapter, ERROR, |
110 | "EVENT: skb->len too small\n"); | |
8311f0da AK |
111 | ret = -1; |
112 | goto exit_restore_skb; | |
4daffe35 AK |
113 | } |
114 | skb_copy_from_linear_data(skb, &tmp, sizeof(u32)); | |
115 | adapter->event_cause = le32_to_cpu(tmp); | |
acebe8c1 ZL |
116 | mwifiex_dbg(adapter, EVENT, |
117 | "event_cause %#x\n", adapter->event_cause); | |
4daffe35 AK |
118 | |
119 | if (skb->len > MAX_EVENT_SIZE) { | |
acebe8c1 ZL |
120 | mwifiex_dbg(adapter, ERROR, |
121 | "EVENT: event body too large\n"); | |
8311f0da AK |
122 | ret = -1; |
123 | goto exit_restore_skb; | |
4daffe35 AK |
124 | } |
125 | ||
e80c81dc AK |
126 | memcpy(adapter->event_body, skb->data + |
127 | MWIFIEX_EVENT_HEADER_LEN, skb->len); | |
128 | ||
4daffe35 AK |
129 | adapter->event_received = true; |
130 | adapter->event_skb = skb; | |
131 | break; | |
132 | default: | |
acebe8c1 ZL |
133 | mwifiex_dbg(adapter, ERROR, |
134 | "unknown recv_type %#x\n", recv_type); | |
4daffe35 AK |
135 | return -1; |
136 | } | |
137 | break; | |
138 | case MWIFIEX_USB_EP_DATA: | |
acebe8c1 | 139 | mwifiex_dbg(adapter, DATA, "%s: EP_DATA\n", __func__); |
4daffe35 | 140 | if (skb->len > MWIFIEX_RX_DATA_BUF_SIZE) { |
acebe8c1 ZL |
141 | mwifiex_dbg(adapter, ERROR, |
142 | "DATA: skb->len too large\n"); | |
4daffe35 AK |
143 | return -1; |
144 | } | |
ec4a16b4 AP |
145 | |
146 | skb_queue_tail(&adapter->rx_data_q, skb); | |
4daffe35 | 147 | adapter->data_received = true; |
ec4a16b4 | 148 | atomic_inc(&adapter->rx_pending); |
4daffe35 AK |
149 | break; |
150 | default: | |
acebe8c1 ZL |
151 | mwifiex_dbg(adapter, ERROR, |
152 | "%s: unknown endport %#x\n", __func__, ep); | |
4daffe35 AK |
153 | return -1; |
154 | } | |
155 | ||
156 | return -EINPROGRESS; | |
8311f0da AK |
157 | |
158 | exit_restore_skb: | |
159 | /* The buffer will be reused for further cmds/events */ | |
160 | skb_push(skb, INTF_HEADER_LEN); | |
161 | ||
162 | return ret; | |
4daffe35 AK |
163 | } |
164 | ||
165 | static void mwifiex_usb_rx_complete(struct urb *urb) | |
166 | { | |
167 | struct urb_context *context = (struct urb_context *)urb->context; | |
168 | struct mwifiex_adapter *adapter = context->adapter; | |
169 | struct sk_buff *skb = context->skb; | |
170 | struct usb_card_rec *card; | |
171 | int recv_length = urb->actual_length; | |
172 | int size, status; | |
173 | ||
174 | if (!adapter || !adapter->card) { | |
175 | pr_err("mwifiex adapter or card structure is not valid\n"); | |
176 | return; | |
177 | } | |
178 | ||
179 | card = (struct usb_card_rec *)adapter->card; | |
180 | if (card->rx_cmd_ep == context->ep) | |
181 | atomic_dec(&card->rx_cmd_urb_pending); | |
182 | else | |
183 | atomic_dec(&card->rx_data_urb_pending); | |
184 | ||
185 | if (recv_length) { | |
186 | if (urb->status || (adapter->surprise_removed)) { | |
acebe8c1 ZL |
187 | mwifiex_dbg(adapter, ERROR, |
188 | "URB status is failed: %d\n", urb->status); | |
4daffe35 AK |
189 | /* Do not free skb in case of command ep */ |
190 | if (card->rx_cmd_ep != context->ep) | |
191 | dev_kfree_skb_any(skb); | |
192 | goto setup_for_next; | |
193 | } | |
194 | if (skb->len > recv_length) | |
195 | skb_trim(skb, recv_length); | |
196 | else | |
197 | skb_put(skb, recv_length - skb->len); | |
198 | ||
4daffe35 AK |
199 | status = mwifiex_usb_recv(adapter, skb, context->ep); |
200 | ||
acebe8c1 ZL |
201 | mwifiex_dbg(adapter, INFO, |
202 | "info: recv_length=%d, status=%d\n", | |
203 | recv_length, status); | |
4daffe35 | 204 | if (status == -EINPROGRESS) { |
b2713f67 | 205 | mwifiex_queue_main_work(adapter); |
4daffe35 AK |
206 | |
207 | /* urb for data_ep is re-submitted now; | |
208 | * urb for cmd_ep will be re-submitted in callback | |
209 | * mwifiex_usb_recv_complete | |
210 | */ | |
211 | if (card->rx_cmd_ep == context->ep) | |
212 | return; | |
213 | } else { | |
4daffe35 | 214 | if (status == -1) |
acebe8c1 ZL |
215 | mwifiex_dbg(adapter, ERROR, |
216 | "received data processing failed!\n"); | |
4daffe35 AK |
217 | |
218 | /* Do not free skb in case of command ep */ | |
219 | if (card->rx_cmd_ep != context->ep) | |
220 | dev_kfree_skb_any(skb); | |
221 | } | |
222 | } else if (urb->status) { | |
223 | if (!adapter->is_suspended) { | |
acebe8c1 ZL |
224 | mwifiex_dbg(adapter, FATAL, |
225 | "Card is removed: %d\n", urb->status); | |
4daffe35 AK |
226 | adapter->surprise_removed = true; |
227 | } | |
228 | dev_kfree_skb_any(skb); | |
229 | return; | |
230 | } else { | |
231 | /* Do not free skb in case of command ep */ | |
232 | if (card->rx_cmd_ep != context->ep) | |
233 | dev_kfree_skb_any(skb); | |
234 | ||
235 | /* fall through setup_for_next */ | |
236 | } | |
237 | ||
238 | setup_for_next: | |
239 | if (card->rx_cmd_ep == context->ep) | |
240 | size = MWIFIEX_RX_CMD_BUF_SIZE; | |
241 | else | |
242 | size = MWIFIEX_RX_DATA_BUF_SIZE; | |
243 | ||
cf6a64fd AK |
244 | if (card->rx_cmd_ep == context->ep) { |
245 | mwifiex_usb_submit_rx_urb(context, size); | |
246 | } else { | |
11bdc440 | 247 | if (atomic_read(&adapter->rx_pending) <= HIGH_RX_PENDING){ |
cf6a64fd | 248 | mwifiex_usb_submit_rx_urb(context, size); |
11bdc440 RA |
249 | }else{ |
250 | context->skb = NULL; | |
251 | } | |
cf6a64fd | 252 | } |
4daffe35 AK |
253 | |
254 | return; | |
255 | } | |
256 | ||
257 | static void mwifiex_usb_tx_complete(struct urb *urb) | |
258 | { | |
259 | struct urb_context *context = (struct urb_context *)(urb->context); | |
260 | struct mwifiex_adapter *adapter = context->adapter; | |
261 | struct usb_card_rec *card = adapter->card; | |
262 | ||
acebe8c1 ZL |
263 | mwifiex_dbg(adapter, INFO, |
264 | "%s: status: %d\n", __func__, urb->status); | |
4daffe35 AK |
265 | |
266 | if (context->ep == card->tx_cmd_ep) { | |
acebe8c1 ZL |
267 | mwifiex_dbg(adapter, CMD, |
268 | "%s: CMD\n", __func__); | |
4daffe35 AK |
269 | atomic_dec(&card->tx_cmd_urb_pending); |
270 | adapter->cmd_sent = false; | |
271 | } else { | |
acebe8c1 ZL |
272 | mwifiex_dbg(adapter, DATA, |
273 | "%s: DATA\n", __func__); | |
4daffe35 | 274 | atomic_dec(&card->tx_data_urb_pending); |
47411a06 | 275 | mwifiex_write_data_complete(adapter, context->skb, 0, |
4daffe35 AK |
276 | urb->status ? -1 : 0); |
277 | } | |
278 | ||
b2713f67 | 279 | mwifiex_queue_main_work(adapter); |
4daffe35 AK |
280 | |
281 | return; | |
282 | } | |
283 | ||
284 | static int mwifiex_usb_submit_rx_urb(struct urb_context *ctx, int size) | |
285 | { | |
286 | struct mwifiex_adapter *adapter = ctx->adapter; | |
287 | struct usb_card_rec *card = (struct usb_card_rec *)adapter->card; | |
288 | ||
289 | if (card->rx_cmd_ep != ctx->ep) { | |
290 | ctx->skb = dev_alloc_skb(size); | |
291 | if (!ctx->skb) { | |
acebe8c1 ZL |
292 | mwifiex_dbg(adapter, ERROR, |
293 | "%s: dev_alloc_skb failed\n", __func__); | |
4daffe35 AK |
294 | return -ENOMEM; |
295 | } | |
296 | } | |
297 | ||
298 | usb_fill_bulk_urb(ctx->urb, card->udev, | |
299 | usb_rcvbulkpipe(card->udev, ctx->ep), ctx->skb->data, | |
300 | size, mwifiex_usb_rx_complete, (void *)ctx); | |
301 | ||
302 | if (card->rx_cmd_ep == ctx->ep) | |
303 | atomic_inc(&card->rx_cmd_urb_pending); | |
304 | else | |
305 | atomic_inc(&card->rx_data_urb_pending); | |
306 | ||
307 | if (usb_submit_urb(ctx->urb, GFP_ATOMIC)) { | |
acebe8c1 | 308 | mwifiex_dbg(adapter, ERROR, "usb_submit_urb failed\n"); |
4daffe35 AK |
309 | dev_kfree_skb_any(ctx->skb); |
310 | ctx->skb = NULL; | |
311 | ||
312 | if (card->rx_cmd_ep == ctx->ep) | |
313 | atomic_dec(&card->rx_cmd_urb_pending); | |
314 | else | |
315 | atomic_dec(&card->rx_data_urb_pending); | |
316 | ||
317 | return -1; | |
318 | } | |
319 | ||
320 | return 0; | |
321 | } | |
322 | ||
323 | static void mwifiex_usb_free(struct usb_card_rec *card) | |
324 | { | |
325 | int i; | |
326 | ||
327 | if (atomic_read(&card->rx_cmd_urb_pending) && card->rx_cmd.urb) | |
328 | usb_kill_urb(card->rx_cmd.urb); | |
329 | ||
330 | usb_free_urb(card->rx_cmd.urb); | |
331 | card->rx_cmd.urb = NULL; | |
332 | ||
333 | if (atomic_read(&card->rx_data_urb_pending)) | |
334 | for (i = 0; i < MWIFIEX_RX_DATA_URB; i++) | |
335 | if (card->rx_data_list[i].urb) | |
336 | usb_kill_urb(card->rx_data_list[i].urb); | |
337 | ||
338 | for (i = 0; i < MWIFIEX_RX_DATA_URB; i++) { | |
339 | usb_free_urb(card->rx_data_list[i].urb); | |
340 | card->rx_data_list[i].urb = NULL; | |
341 | } | |
342 | ||
343 | for (i = 0; i < MWIFIEX_TX_DATA_URB; i++) { | |
344 | usb_free_urb(card->tx_data_list[i].urb); | |
345 | card->tx_data_list[i].urb = NULL; | |
346 | } | |
347 | ||
348 | usb_free_urb(card->tx_cmd.urb); | |
349 | card->tx_cmd.urb = NULL; | |
350 | ||
351 | return; | |
352 | } | |
353 | ||
354 | /* This function probes an mwifiex device and registers it. It allocates | |
355 | * the card structure, initiates the device registration and initialization | |
356 | * procedure by adding a logical interface. | |
357 | */ | |
358 | static int mwifiex_usb_probe(struct usb_interface *intf, | |
359 | const struct usb_device_id *id) | |
360 | { | |
361 | struct usb_device *udev = interface_to_usbdev(intf); | |
362 | struct usb_host_interface *iface_desc = intf->cur_altsetting; | |
363 | struct usb_endpoint_descriptor *epd; | |
364 | int ret, i; | |
365 | struct usb_card_rec *card; | |
366 | u16 id_vendor, id_product, bcd_device, bcd_usb; | |
367 | ||
368 | card = kzalloc(sizeof(struct usb_card_rec), GFP_KERNEL); | |
369 | if (!card) | |
370 | return -ENOMEM; | |
371 | ||
372 | id_vendor = le16_to_cpu(udev->descriptor.idVendor); | |
373 | id_product = le16_to_cpu(udev->descriptor.idProduct); | |
374 | bcd_device = le16_to_cpu(udev->descriptor.bcdDevice); | |
375 | bcd_usb = le16_to_cpu(udev->descriptor.bcdUSB); | |
376 | pr_debug("info: VID/PID = %X/%X, Boot2 version = %X\n", | |
377 | id_vendor, id_product, bcd_device); | |
378 | ||
379 | /* PID_1 is used for firmware downloading only */ | |
68458ded | 380 | switch (id_product) { |
9e6f3f47 | 381 | case USB8766_PID_1: |
68458ded | 382 | case USB8797_PID_1: |
eaa3d9fa | 383 | case USB8801_PID_1: |
68458ded YAP |
384 | case USB8897_PID_1: |
385 | card->usb_boot_state = USB8XXX_FW_DNLD; | |
386 | break; | |
9e6f3f47 | 387 | case USB8766_PID_2: |
68458ded | 388 | case USB8797_PID_2: |
eaa3d9fa | 389 | case USB8801_PID_2: |
68458ded YAP |
390 | case USB8897_PID_2: |
391 | card->usb_boot_state = USB8XXX_FW_READY; | |
392 | break; | |
393 | default: | |
fe3881cf | 394 | pr_warn("unknown id_product %#x\n", id_product); |
68458ded YAP |
395 | card->usb_boot_state = USB8XXX_FW_DNLD; |
396 | break; | |
397 | } | |
4daffe35 AK |
398 | |
399 | card->udev = udev; | |
400 | card->intf = intf; | |
401 | ||
69797838 | 402 | pr_debug("info: bcdUSB=%#x Device Class=%#x SubClass=%#x Protocol=%#x\n", |
4daffe35 AK |
403 | udev->descriptor.bcdUSB, udev->descriptor.bDeviceClass, |
404 | udev->descriptor.bDeviceSubClass, | |
405 | udev->descriptor.bDeviceProtocol); | |
406 | ||
407 | for (i = 0; i < iface_desc->desc.bNumEndpoints; ++i) { | |
408 | epd = &iface_desc->endpoint[i].desc; | |
409 | if (usb_endpoint_dir_in(epd) && | |
410 | usb_endpoint_num(epd) == MWIFIEX_USB_EP_CMD_EVENT && | |
411 | usb_endpoint_xfer_bulk(epd)) { | |
412 | pr_debug("info: bulk IN: max pkt size: %d, addr: %d\n", | |
413 | le16_to_cpu(epd->wMaxPacketSize), | |
414 | epd->bEndpointAddress); | |
415 | card->rx_cmd_ep = usb_endpoint_num(epd); | |
416 | atomic_set(&card->rx_cmd_urb_pending, 0); | |
417 | } | |
418 | if (usb_endpoint_dir_in(epd) && | |
419 | usb_endpoint_num(epd) == MWIFIEX_USB_EP_DATA && | |
420 | usb_endpoint_xfer_bulk(epd)) { | |
421 | pr_debug("info: bulk IN: max pkt size: %d, addr: %d\n", | |
422 | le16_to_cpu(epd->wMaxPacketSize), | |
423 | epd->bEndpointAddress); | |
424 | card->rx_data_ep = usb_endpoint_num(epd); | |
425 | atomic_set(&card->rx_data_urb_pending, 0); | |
426 | } | |
427 | if (usb_endpoint_dir_out(epd) && | |
428 | usb_endpoint_num(epd) == MWIFIEX_USB_EP_DATA && | |
429 | usb_endpoint_xfer_bulk(epd)) { | |
430 | pr_debug("info: bulk OUT: max pkt size: %d, addr: %d\n", | |
431 | le16_to_cpu(epd->wMaxPacketSize), | |
432 | epd->bEndpointAddress); | |
433 | card->tx_data_ep = usb_endpoint_num(epd); | |
434 | atomic_set(&card->tx_data_urb_pending, 0); | |
435 | } | |
436 | if (usb_endpoint_dir_out(epd) && | |
437 | usb_endpoint_num(epd) == MWIFIEX_USB_EP_CMD_EVENT && | |
438 | usb_endpoint_xfer_bulk(epd)) { | |
439 | pr_debug("info: bulk OUT: max pkt size: %d, addr: %d\n", | |
440 | le16_to_cpu(epd->wMaxPacketSize), | |
441 | epd->bEndpointAddress); | |
442 | card->tx_cmd_ep = usb_endpoint_num(epd); | |
443 | atomic_set(&card->tx_cmd_urb_pending, 0); | |
444 | card->bulk_out_maxpktsize = | |
445 | le16_to_cpu(epd->wMaxPacketSize); | |
446 | } | |
447 | } | |
448 | ||
449 | usb_set_intfdata(intf, card); | |
450 | ||
451 | ret = mwifiex_add_card(card, &add_remove_card_sem, &usb_ops, | |
452 | MWIFIEX_USB); | |
453 | if (ret) { | |
454 | pr_err("%s: mwifiex_add_card failed: %d\n", __func__, ret); | |
455 | usb_reset_device(udev); | |
456 | kfree(card); | |
457 | return ret; | |
458 | } | |
459 | ||
460 | usb_get_dev(udev); | |
461 | ||
462 | return 0; | |
463 | } | |
464 | ||
465 | /* Kernel needs to suspend all functions separately. Therefore all | |
466 | * registered functions must have drivers with suspend and resume | |
467 | * methods. Failing that the kernel simply removes the whole card. | |
468 | * | |
469 | * If already not suspended, this function allocates and sends a | |
470 | * 'host sleep activate' request to the firmware and turns off the traffic. | |
471 | */ | |
472 | static int mwifiex_usb_suspend(struct usb_interface *intf, pm_message_t message) | |
473 | { | |
474 | struct usb_card_rec *card = usb_get_intfdata(intf); | |
475 | struct mwifiex_adapter *adapter; | |
476 | int i; | |
477 | ||
478 | if (!card || !card->adapter) { | |
479 | pr_err("%s: card or card->adapter is NULL\n", __func__); | |
480 | return 0; | |
481 | } | |
482 | adapter = card->adapter; | |
483 | ||
484 | if (unlikely(adapter->is_suspended)) | |
acebe8c1 ZL |
485 | mwifiex_dbg(adapter, WARN, |
486 | "Device already suspended\n"); | |
4daffe35 AK |
487 | |
488 | mwifiex_enable_hs(adapter); | |
489 | ||
490 | /* 'is_suspended' flag indicates device is suspended. | |
491 | * It must be set here before the usb_kill_urb() calls. Reason | |
492 | * is in the complete handlers, urb->status(= -ENOENT) and | |
493 | * this flag is used in combination to distinguish between a | |
494 | * 'suspended' state and a 'disconnect' one. | |
495 | */ | |
496 | adapter->is_suspended = true; | |
c0dbba66 | 497 | adapter->hs_enabling = false; |
4daffe35 | 498 | |
4daffe35 AK |
499 | if (atomic_read(&card->rx_cmd_urb_pending) && card->rx_cmd.urb) |
500 | usb_kill_urb(card->rx_cmd.urb); | |
501 | ||
502 | if (atomic_read(&card->rx_data_urb_pending)) | |
503 | for (i = 0; i < MWIFIEX_RX_DATA_URB; i++) | |
504 | if (card->rx_data_list[i].urb) | |
505 | usb_kill_urb(card->rx_data_list[i].urb); | |
506 | ||
507 | for (i = 0; i < MWIFIEX_TX_DATA_URB; i++) | |
508 | if (card->tx_data_list[i].urb) | |
509 | usb_kill_urb(card->tx_data_list[i].urb); | |
510 | ||
511 | if (card->tx_cmd.urb) | |
512 | usb_kill_urb(card->tx_cmd.urb); | |
513 | ||
514 | return 0; | |
515 | } | |
516 | ||
517 | /* Kernel needs to suspend all functions separately. Therefore all | |
518 | * registered functions must have drivers with suspend and resume | |
519 | * methods. Failing that the kernel simply removes the whole card. | |
520 | * | |
521 | * If already not resumed, this function turns on the traffic and | |
522 | * sends a 'host sleep cancel' request to the firmware. | |
523 | */ | |
524 | static int mwifiex_usb_resume(struct usb_interface *intf) | |
525 | { | |
526 | struct usb_card_rec *card = usb_get_intfdata(intf); | |
527 | struct mwifiex_adapter *adapter; | |
528 | int i; | |
529 | ||
530 | if (!card || !card->adapter) { | |
531 | pr_err("%s: card or card->adapter is NULL\n", __func__); | |
532 | return 0; | |
533 | } | |
534 | adapter = card->adapter; | |
535 | ||
536 | if (unlikely(!adapter->is_suspended)) { | |
acebe8c1 ZL |
537 | mwifiex_dbg(adapter, WARN, |
538 | "Device already resumed\n"); | |
4daffe35 AK |
539 | return 0; |
540 | } | |
541 | ||
542 | /* Indicate device resumed. The netdev queue will be resumed only | |
543 | * after the urbs have been re-submitted | |
544 | */ | |
545 | adapter->is_suspended = false; | |
546 | ||
547 | if (!atomic_read(&card->rx_data_urb_pending)) | |
548 | for (i = 0; i < MWIFIEX_RX_DATA_URB; i++) | |
549 | mwifiex_usb_submit_rx_urb(&card->rx_data_list[i], | |
550 | MWIFIEX_RX_DATA_BUF_SIZE); | |
551 | ||
552 | if (!atomic_read(&card->rx_cmd_urb_pending)) { | |
553 | card->rx_cmd.skb = dev_alloc_skb(MWIFIEX_RX_CMD_BUF_SIZE); | |
554 | if (card->rx_cmd.skb) | |
555 | mwifiex_usb_submit_rx_urb(&card->rx_cmd, | |
556 | MWIFIEX_RX_CMD_BUF_SIZE); | |
557 | } | |
558 | ||
4daffe35 AK |
559 | /* Disable Host Sleep */ |
560 | if (adapter->hs_activated) | |
561 | mwifiex_cancel_hs(mwifiex_get_priv(adapter, | |
562 | MWIFIEX_BSS_ROLE_ANY), | |
563 | MWIFIEX_ASYNC_CMD); | |
564 | ||
4daffe35 AK |
565 | return 0; |
566 | } | |
567 | ||
568 | static void mwifiex_usb_disconnect(struct usb_interface *intf) | |
569 | { | |
570 | struct usb_card_rec *card = usb_get_intfdata(intf); | |
3fffd7c1 | 571 | struct mwifiex_adapter *adapter; |
4daffe35 | 572 | |
3fffd7c1 AK |
573 | if (!card || !card->adapter) { |
574 | pr_err("%s: card or card->adapter is NULL\n", __func__); | |
4daffe35 AK |
575 | return; |
576 | } | |
577 | ||
3fffd7c1 AK |
578 | adapter = card->adapter; |
579 | if (!adapter->priv_num) | |
580 | return; | |
4daffe35 | 581 | |
3fffd7c1 AK |
582 | if (user_rmmod) { |
583 | #ifdef CONFIG_PM | |
584 | if (adapter->is_suspended) | |
585 | mwifiex_usb_resume(intf); | |
586 | #endif | |
587 | ||
588 | mwifiex_deauthenticate_all(adapter); | |
353d2a69 | 589 | |
3fffd7c1 AK |
590 | mwifiex_init_shutdown_fw(mwifiex_get_priv(adapter, |
591 | MWIFIEX_BSS_ROLE_ANY), | |
592 | MWIFIEX_FUNC_SHUTDOWN); | |
353d2a69 | 593 | } |
4daffe35 | 594 | |
3fffd7c1 AK |
595 | mwifiex_usb_free(card); |
596 | ||
acebe8c1 ZL |
597 | mwifiex_dbg(adapter, FATAL, |
598 | "%s: removing card\n", __func__); | |
3fffd7c1 AK |
599 | mwifiex_remove_card(adapter, &add_remove_card_sem); |
600 | ||
4daffe35 AK |
601 | usb_set_intfdata(intf, NULL); |
602 | usb_put_dev(interface_to_usbdev(intf)); | |
603 | kfree(card); | |
604 | ||
605 | return; | |
606 | } | |
607 | ||
608 | static struct usb_driver mwifiex_usb_driver = { | |
e4ceb0f4 | 609 | .name = "mwifiex_usb", |
4daffe35 AK |
610 | .probe = mwifiex_usb_probe, |
611 | .disconnect = mwifiex_usb_disconnect, | |
612 | .id_table = mwifiex_usb_table, | |
613 | .suspend = mwifiex_usb_suspend, | |
614 | .resume = mwifiex_usb_resume, | |
3fffd7c1 | 615 | .soft_unbind = 1, |
4daffe35 AK |
616 | }; |
617 | ||
618 | static int mwifiex_usb_tx_init(struct mwifiex_adapter *adapter) | |
619 | { | |
620 | struct usb_card_rec *card = (struct usb_card_rec *)adapter->card; | |
621 | int i; | |
622 | ||
623 | card->tx_cmd.adapter = adapter; | |
624 | card->tx_cmd.ep = card->tx_cmd_ep; | |
625 | ||
626 | card->tx_cmd.urb = usb_alloc_urb(0, GFP_KERNEL); | |
627 | if (!card->tx_cmd.urb) { | |
acebe8c1 ZL |
628 | mwifiex_dbg(adapter, ERROR, |
629 | "tx_cmd.urb allocation failed\n"); | |
4daffe35 AK |
630 | return -ENOMEM; |
631 | } | |
632 | ||
633 | card->tx_data_ix = 0; | |
634 | ||
635 | for (i = 0; i < MWIFIEX_TX_DATA_URB; i++) { | |
636 | card->tx_data_list[i].adapter = adapter; | |
637 | card->tx_data_list[i].ep = card->tx_data_ep; | |
638 | ||
639 | card->tx_data_list[i].urb = usb_alloc_urb(0, GFP_KERNEL); | |
640 | if (!card->tx_data_list[i].urb) { | |
acebe8c1 ZL |
641 | mwifiex_dbg(adapter, ERROR, |
642 | "tx_data_list[] urb allocation failed\n"); | |
4daffe35 AK |
643 | return -ENOMEM; |
644 | } | |
645 | } | |
646 | ||
647 | return 0; | |
648 | } | |
649 | ||
650 | static int mwifiex_usb_rx_init(struct mwifiex_adapter *adapter) | |
651 | { | |
652 | struct usb_card_rec *card = (struct usb_card_rec *)adapter->card; | |
653 | int i; | |
654 | ||
655 | card->rx_cmd.adapter = adapter; | |
656 | card->rx_cmd.ep = card->rx_cmd_ep; | |
657 | ||
658 | card->rx_cmd.urb = usb_alloc_urb(0, GFP_KERNEL); | |
659 | if (!card->rx_cmd.urb) { | |
acebe8c1 | 660 | mwifiex_dbg(adapter, ERROR, "rx_cmd.urb allocation failed\n"); |
4daffe35 AK |
661 | return -ENOMEM; |
662 | } | |
663 | ||
664 | card->rx_cmd.skb = dev_alloc_skb(MWIFIEX_RX_CMD_BUF_SIZE); | |
acebe8c1 | 665 | if (!card->rx_cmd.skb) |
4daffe35 | 666 | return -ENOMEM; |
4daffe35 AK |
667 | |
668 | if (mwifiex_usb_submit_rx_urb(&card->rx_cmd, MWIFIEX_RX_CMD_BUF_SIZE)) | |
669 | return -1; | |
670 | ||
671 | for (i = 0; i < MWIFIEX_RX_DATA_URB; i++) { | |
672 | card->rx_data_list[i].adapter = adapter; | |
673 | card->rx_data_list[i].ep = card->rx_data_ep; | |
674 | ||
675 | card->rx_data_list[i].urb = usb_alloc_urb(0, GFP_KERNEL); | |
676 | if (!card->rx_data_list[i].urb) { | |
acebe8c1 ZL |
677 | mwifiex_dbg(adapter, ERROR, |
678 | "rx_data_list[] urb allocation failed\n"); | |
4daffe35 AK |
679 | return -1; |
680 | } | |
681 | if (mwifiex_usb_submit_rx_urb(&card->rx_data_list[i], | |
682 | MWIFIEX_RX_DATA_BUF_SIZE)) | |
683 | return -1; | |
684 | } | |
685 | ||
686 | return 0; | |
687 | } | |
688 | ||
689 | static int mwifiex_write_data_sync(struct mwifiex_adapter *adapter, u8 *pbuf, | |
690 | u32 *len, u8 ep, u32 timeout) | |
691 | { | |
692 | struct usb_card_rec *card = adapter->card; | |
693 | int actual_length, ret; | |
694 | ||
695 | if (!(*len % card->bulk_out_maxpktsize)) | |
696 | (*len)++; | |
697 | ||
698 | /* Send the data block */ | |
699 | ret = usb_bulk_msg(card->udev, usb_sndbulkpipe(card->udev, ep), pbuf, | |
700 | *len, &actual_length, timeout); | |
701 | if (ret) { | |
acebe8c1 ZL |
702 | mwifiex_dbg(adapter, ERROR, |
703 | "usb_bulk_msg for tx failed: %d\n", ret); | |
5b2e2ecc | 704 | return ret; |
4daffe35 AK |
705 | } |
706 | ||
707 | *len = actual_length; | |
708 | ||
709 | return ret; | |
710 | } | |
711 | ||
712 | static int mwifiex_read_data_sync(struct mwifiex_adapter *adapter, u8 *pbuf, | |
713 | u32 *len, u8 ep, u32 timeout) | |
714 | { | |
715 | struct usb_card_rec *card = adapter->card; | |
716 | int actual_length, ret; | |
717 | ||
718 | /* Receive the data response */ | |
719 | ret = usb_bulk_msg(card->udev, usb_rcvbulkpipe(card->udev, ep), pbuf, | |
720 | *len, &actual_length, timeout); | |
721 | if (ret) { | |
acebe8c1 ZL |
722 | mwifiex_dbg(adapter, ERROR, |
723 | "usb_bulk_msg for rx failed: %d\n", ret); | |
5b2e2ecc | 724 | return ret; |
4daffe35 AK |
725 | } |
726 | ||
727 | *len = actual_length; | |
728 | ||
729 | return ret; | |
730 | } | |
731 | ||
732 | /* This function write a command/data packet to card. */ | |
733 | static int mwifiex_usb_host_to_card(struct mwifiex_adapter *adapter, u8 ep, | |
734 | struct sk_buff *skb, | |
735 | struct mwifiex_tx_param *tx_param) | |
736 | { | |
737 | struct usb_card_rec *card = adapter->card; | |
738 | struct urb_context *context; | |
739 | u8 *data = (u8 *)skb->data; | |
740 | struct urb *tx_urb; | |
741 | ||
742 | if (adapter->is_suspended) { | |
acebe8c1 ZL |
743 | mwifiex_dbg(adapter, ERROR, |
744 | "%s: not allowed while suspended\n", __func__); | |
4daffe35 AK |
745 | return -1; |
746 | } | |
747 | ||
748 | if (adapter->surprise_removed) { | |
acebe8c1 | 749 | mwifiex_dbg(adapter, ERROR, "%s: device removed\n", __func__); |
4daffe35 AK |
750 | return -1; |
751 | } | |
752 | ||
753 | if (ep == card->tx_data_ep && | |
754 | atomic_read(&card->tx_data_urb_pending) >= MWIFIEX_TX_DATA_URB) { | |
755 | return -EBUSY; | |
756 | } | |
757 | ||
acebe8c1 | 758 | mwifiex_dbg(adapter, INFO, "%s: ep=%d\n", __func__, ep); |
4daffe35 AK |
759 | |
760 | if (ep == card->tx_cmd_ep) { | |
761 | context = &card->tx_cmd; | |
762 | } else { | |
763 | if (card->tx_data_ix >= MWIFIEX_TX_DATA_URB) | |
764 | card->tx_data_ix = 0; | |
765 | context = &card->tx_data_list[card->tx_data_ix++]; | |
766 | } | |
767 | ||
768 | context->adapter = adapter; | |
769 | context->ep = ep; | |
770 | context->skb = skb; | |
771 | tx_urb = context->urb; | |
772 | ||
773 | usb_fill_bulk_urb(tx_urb, card->udev, usb_sndbulkpipe(card->udev, ep), | |
774 | data, skb->len, mwifiex_usb_tx_complete, | |
775 | (void *)context); | |
776 | ||
777 | tx_urb->transfer_flags |= URB_ZERO_PACKET; | |
778 | ||
779 | if (ep == card->tx_cmd_ep) | |
780 | atomic_inc(&card->tx_cmd_urb_pending); | |
781 | else | |
782 | atomic_inc(&card->tx_data_urb_pending); | |
783 | ||
784 | if (usb_submit_urb(tx_urb, GFP_ATOMIC)) { | |
acebe8c1 ZL |
785 | mwifiex_dbg(adapter, ERROR, |
786 | "%s: usb_submit_urb failed\n", __func__); | |
4daffe35 AK |
787 | if (ep == card->tx_cmd_ep) { |
788 | atomic_dec(&card->tx_cmd_urb_pending); | |
789 | } else { | |
790 | atomic_dec(&card->tx_data_urb_pending); | |
791 | if (card->tx_data_ix) | |
792 | card->tx_data_ix--; | |
793 | else | |
794 | card->tx_data_ix = MWIFIEX_TX_DATA_URB; | |
795 | } | |
796 | ||
797 | return -1; | |
798 | } else { | |
799 | if (ep == card->tx_data_ep && | |
800 | atomic_read(&card->tx_data_urb_pending) == | |
801 | MWIFIEX_TX_DATA_URB) | |
802 | return -ENOSR; | |
803 | } | |
804 | ||
805 | return -EINPROGRESS; | |
806 | } | |
807 | ||
808 | /* This function register usb device and initialize parameter. */ | |
809 | static int mwifiex_register_dev(struct mwifiex_adapter *adapter) | |
810 | { | |
811 | struct usb_card_rec *card = (struct usb_card_rec *)adapter->card; | |
812 | ||
813 | card->adapter = adapter; | |
814 | adapter->dev = &card->udev->dev; | |
4daffe35 | 815 | |
68458ded YAP |
816 | switch (le16_to_cpu(card->udev->descriptor.idProduct)) { |
817 | case USB8897_PID_1: | |
818 | case USB8897_PID_2: | |
828cf222 | 819 | adapter->tx_buf_size = MWIFIEX_TX_DATA_BUF_SIZE_4K; |
68458ded | 820 | strcpy(adapter->fw_name, USB8897_DEFAULT_FW_NAME); |
1fe192d8 | 821 | adapter->ext_scan = true; |
68458ded | 822 | break; |
9e6f3f47 KE |
823 | case USB8766_PID_1: |
824 | case USB8766_PID_2: | |
825 | adapter->tx_buf_size = MWIFIEX_TX_DATA_BUF_SIZE_2K; | |
826 | strcpy(adapter->fw_name, USB8766_DEFAULT_FW_NAME); | |
1fe192d8 | 827 | adapter->ext_scan = true; |
9e6f3f47 | 828 | break; |
eaa3d9fa YAP |
829 | case USB8801_PID_1: |
830 | case USB8801_PID_2: | |
831 | adapter->tx_buf_size = MWIFIEX_TX_DATA_BUF_SIZE_2K; | |
832 | strcpy(adapter->fw_name, USB8801_DEFAULT_FW_NAME); | |
1fe192d8 | 833 | adapter->ext_scan = false; |
eaa3d9fa | 834 | break; |
68458ded YAP |
835 | case USB8797_PID_1: |
836 | case USB8797_PID_2: | |
837 | default: | |
828cf222 | 838 | adapter->tx_buf_size = MWIFIEX_TX_DATA_BUF_SIZE_2K; |
68458ded YAP |
839 | strcpy(adapter->fw_name, USB8797_DEFAULT_FW_NAME); |
840 | break; | |
841 | } | |
842 | ||
4daffe35 AK |
843 | return 0; |
844 | } | |
845 | ||
2739a95d AK |
846 | static void mwifiex_unregister_dev(struct mwifiex_adapter *adapter) |
847 | { | |
848 | struct usb_card_rec *card = (struct usb_card_rec *)adapter->card; | |
849 | ||
353d2a69 | 850 | card->adapter = NULL; |
2739a95d AK |
851 | } |
852 | ||
4daffe35 AK |
853 | static int mwifiex_prog_fw_w_helper(struct mwifiex_adapter *adapter, |
854 | struct mwifiex_fw_image *fw) | |
855 | { | |
856 | int ret = 0; | |
857 | u8 *firmware = fw->fw_buf, *recv_buff; | |
68458ded | 858 | u32 retries = USB8XXX_FW_MAX_RETRY, dlen; |
4daffe35 AK |
859 | u32 fw_seqnum = 0, tlen = 0, dnld_cmd = 0; |
860 | struct fw_data *fwdata; | |
861 | struct fw_sync_header sync_fw; | |
862 | u8 check_winner = 1; | |
863 | ||
864 | if (!firmware) { | |
acebe8c1 ZL |
865 | mwifiex_dbg(adapter, ERROR, |
866 | "No firmware image found! Terminating download\n"); | |
4daffe35 AK |
867 | ret = -1; |
868 | goto fw_exit; | |
869 | } | |
870 | ||
871 | /* Allocate memory for transmit */ | |
872 | fwdata = kzalloc(FW_DNLD_TX_BUF_SIZE, GFP_KERNEL); | |
3b1f0e86 DC |
873 | if (!fwdata) { |
874 | ret = -ENOMEM; | |
4daffe35 | 875 | goto fw_exit; |
3b1f0e86 | 876 | } |
4daffe35 AK |
877 | |
878 | /* Allocate memory for receive */ | |
879 | recv_buff = kzalloc(FW_DNLD_RX_BUF_SIZE, GFP_KERNEL); | |
880 | if (!recv_buff) | |
881 | goto cleanup; | |
882 | ||
883 | do { | |
884 | /* Send pseudo data to check winner status first */ | |
885 | if (check_winner) { | |
886 | memset(&fwdata->fw_hdr, 0, sizeof(struct fw_header)); | |
887 | dlen = 0; | |
888 | } else { | |
889 | /* copy the header of the fw_data to get the length */ | |
fc40ca92 SL |
890 | memcpy(&fwdata->fw_hdr, &firmware[tlen], |
891 | sizeof(struct fw_header)); | |
4daffe35 AK |
892 | |
893 | dlen = le32_to_cpu(fwdata->fw_hdr.data_len); | |
894 | dnld_cmd = le32_to_cpu(fwdata->fw_hdr.dnld_cmd); | |
895 | tlen += sizeof(struct fw_header); | |
896 | ||
fc40ca92 | 897 | memcpy(fwdata->data, &firmware[tlen], dlen); |
4daffe35 AK |
898 | |
899 | fwdata->seq_num = cpu_to_le32(fw_seqnum); | |
900 | tlen += dlen; | |
901 | } | |
902 | ||
903 | /* If the send/receive fails or CRC occurs then retry */ | |
904 | while (retries--) { | |
905 | u8 *buf = (u8 *)fwdata; | |
906 | u32 len = FW_DATA_XMIT_SIZE; | |
907 | ||
908 | /* send the firmware block */ | |
909 | ret = mwifiex_write_data_sync(adapter, buf, &len, | |
910 | MWIFIEX_USB_EP_CMD_EVENT, | |
911 | MWIFIEX_USB_TIMEOUT); | |
912 | if (ret) { | |
acebe8c1 ZL |
913 | mwifiex_dbg(adapter, ERROR, |
914 | "write_data_sync: failed: %d\n", | |
915 | ret); | |
4daffe35 AK |
916 | continue; |
917 | } | |
918 | ||
919 | buf = recv_buff; | |
920 | len = FW_DNLD_RX_BUF_SIZE; | |
921 | ||
922 | /* Receive the firmware block response */ | |
923 | ret = mwifiex_read_data_sync(adapter, buf, &len, | |
924 | MWIFIEX_USB_EP_CMD_EVENT, | |
925 | MWIFIEX_USB_TIMEOUT); | |
926 | if (ret) { | |
acebe8c1 ZL |
927 | mwifiex_dbg(adapter, ERROR, |
928 | "read_data_sync: failed: %d\n", | |
929 | ret); | |
4daffe35 AK |
930 | continue; |
931 | } | |
932 | ||
933 | memcpy(&sync_fw, recv_buff, | |
934 | sizeof(struct fw_sync_header)); | |
935 | ||
936 | /* check 1st firmware block resp for highest bit set */ | |
937 | if (check_winner) { | |
938 | if (le32_to_cpu(sync_fw.cmd) & 0x80000000) { | |
acebe8c1 ZL |
939 | mwifiex_dbg(adapter, WARN, |
940 | "USB is not the winner %#x\n", | |
941 | sync_fw.cmd); | |
4daffe35 AK |
942 | |
943 | /* returning success */ | |
944 | ret = 0; | |
945 | goto cleanup; | |
946 | } | |
947 | ||
acebe8c1 ZL |
948 | mwifiex_dbg(adapter, MSG, |
949 | "start to download FW...\n"); | |
4daffe35 AK |
950 | |
951 | check_winner = 0; | |
952 | break; | |
953 | } | |
954 | ||
955 | /* check the firmware block response for CRC errors */ | |
956 | if (sync_fw.cmd) { | |
acebe8c1 ZL |
957 | mwifiex_dbg(adapter, ERROR, |
958 | "FW received block with CRC %#x\n", | |
959 | sync_fw.cmd); | |
4daffe35 AK |
960 | ret = -1; |
961 | continue; | |
962 | } | |
963 | ||
68458ded | 964 | retries = USB8XXX_FW_MAX_RETRY; |
4daffe35 AK |
965 | break; |
966 | } | |
967 | fw_seqnum++; | |
968 | } while ((dnld_cmd != FW_HAS_LAST_BLOCK) && retries); | |
969 | ||
970 | cleanup: | |
acebe8c1 ZL |
971 | mwifiex_dbg(adapter, MSG, |
972 | "info: FW download over, size %d bytes\n", tlen); | |
4daffe35 AK |
973 | |
974 | kfree(recv_buff); | |
975 | kfree(fwdata); | |
976 | ||
977 | if (retries) | |
978 | ret = 0; | |
979 | fw_exit: | |
980 | return ret; | |
981 | } | |
982 | ||
983 | static int mwifiex_usb_dnld_fw(struct mwifiex_adapter *adapter, | |
984 | struct mwifiex_fw_image *fw) | |
985 | { | |
986 | int ret; | |
987 | struct usb_card_rec *card = (struct usb_card_rec *)adapter->card; | |
988 | ||
68458ded | 989 | if (card->usb_boot_state == USB8XXX_FW_DNLD) { |
4daffe35 AK |
990 | ret = mwifiex_prog_fw_w_helper(adapter, fw); |
991 | if (ret) | |
992 | return -1; | |
993 | ||
994 | /* Boot state changes after successful firmware download */ | |
68458ded | 995 | if (card->usb_boot_state == USB8XXX_FW_DNLD) |
4daffe35 AK |
996 | return -1; |
997 | } | |
998 | ||
999 | ret = mwifiex_usb_rx_init(adapter); | |
1000 | if (!ret) | |
1001 | ret = mwifiex_usb_tx_init(adapter); | |
1002 | ||
1003 | return ret; | |
1004 | } | |
1005 | ||
1006 | static void mwifiex_submit_rx_urb(struct mwifiex_adapter *adapter, u8 ep) | |
1007 | { | |
1008 | struct usb_card_rec *card = (struct usb_card_rec *)adapter->card; | |
1009 | ||
1010 | skb_push(card->rx_cmd.skb, INTF_HEADER_LEN); | |
1011 | if ((ep == card->rx_cmd_ep) && | |
1012 | (!atomic_read(&card->rx_cmd_urb_pending))) | |
1013 | mwifiex_usb_submit_rx_urb(&card->rx_cmd, | |
1014 | MWIFIEX_RX_CMD_BUF_SIZE); | |
1015 | ||
1016 | return; | |
1017 | } | |
1018 | ||
1019 | static int mwifiex_usb_cmd_event_complete(struct mwifiex_adapter *adapter, | |
1020 | struct sk_buff *skb) | |
1021 | { | |
4daffe35 AK |
1022 | mwifiex_submit_rx_urb(adapter, MWIFIEX_USB_EP_CMD_EVENT); |
1023 | ||
1024 | return 0; | |
1025 | } | |
1026 | ||
4daffe35 AK |
1027 | /* This function wakes up the card. */ |
1028 | static int mwifiex_pm_wakeup_card(struct mwifiex_adapter *adapter) | |
1029 | { | |
1030 | /* Simulation of HS_AWAKE event */ | |
1031 | adapter->pm_wakeup_fw_try = false; | |
6e9344fd | 1032 | del_timer(&adapter->wakeup_timer); |
4daffe35 AK |
1033 | adapter->pm_wakeup_card_req = false; |
1034 | adapter->ps_state = PS_STATE_AWAKE; | |
1035 | ||
1036 | return 0; | |
1037 | } | |
1038 | ||
cf6a64fd AK |
1039 | static void mwifiex_usb_submit_rem_rx_urbs(struct mwifiex_adapter *adapter) |
1040 | { | |
1041 | struct usb_card_rec *card = (struct usb_card_rec *)adapter->card; | |
1042 | int i; | |
1043 | struct urb_context *ctx; | |
1044 | ||
1045 | for (i = 0; i < MWIFIEX_RX_DATA_URB; i++) { | |
1046 | if (card->rx_data_list[i].skb) | |
1047 | continue; | |
1048 | ctx = &card->rx_data_list[i]; | |
1049 | mwifiex_usb_submit_rx_urb(ctx, MWIFIEX_RX_DATA_BUF_SIZE); | |
1050 | } | |
1051 | } | |
1052 | ||
61754303 XH |
1053 | /* This function is called after the card has woken up. */ |
1054 | static inline int | |
1055 | mwifiex_pm_wakeup_card_complete(struct mwifiex_adapter *adapter) | |
1056 | { | |
1057 | return 0; | |
1058 | } | |
1059 | ||
4daffe35 AK |
1060 | static struct mwifiex_if_ops usb_ops = { |
1061 | .register_dev = mwifiex_register_dev, | |
2739a95d | 1062 | .unregister_dev = mwifiex_unregister_dev, |
4daffe35 AK |
1063 | .wakeup = mwifiex_pm_wakeup_card, |
1064 | .wakeup_complete = mwifiex_pm_wakeup_card_complete, | |
1065 | ||
1066 | /* USB specific */ | |
1067 | .dnld_fw = mwifiex_usb_dnld_fw, | |
1068 | .cmdrsp_complete = mwifiex_usb_cmd_event_complete, | |
1069 | .event_complete = mwifiex_usb_cmd_event_complete, | |
4daffe35 | 1070 | .host_to_card = mwifiex_usb_host_to_card, |
cf6a64fd | 1071 | .submit_rem_rx_urbs = mwifiex_usb_submit_rem_rx_urbs, |
4daffe35 AK |
1072 | }; |
1073 | ||
1074 | /* This function initializes the USB driver module. | |
1075 | * | |
1076 | * This initiates the semaphore and registers the device with | |
1077 | * USB bus. | |
1078 | */ | |
1079 | static int mwifiex_usb_init_module(void) | |
1080 | { | |
1081 | int ret; | |
1082 | ||
1083 | pr_debug("Marvell USB8797 Driver\n"); | |
1084 | ||
1085 | sema_init(&add_remove_card_sem, 1); | |
1086 | ||
1087 | ret = usb_register(&mwifiex_usb_driver); | |
1088 | if (ret) | |
1089 | pr_err("Driver register failed!\n"); | |
1090 | else | |
1091 | pr_debug("info: Driver registered successfully!\n"); | |
1092 | ||
1093 | return ret; | |
1094 | } | |
1095 | ||
1096 | /* This function cleans up the USB driver. | |
1097 | * | |
1098 | * The following major steps are followed in .disconnect for cleanup: | |
1099 | * - Resume the device if its suspended | |
1100 | * - Disconnect the device if connected | |
1101 | * - Shutdown the firmware | |
1102 | * - Unregister the device from USB bus. | |
1103 | */ | |
1104 | static void mwifiex_usb_cleanup_module(void) | |
1105 | { | |
1106 | if (!down_interruptible(&add_remove_card_sem)) | |
1107 | up(&add_remove_card_sem); | |
1108 | ||
3fffd7c1 AK |
1109 | /* set the flag as user is removing this module */ |
1110 | user_rmmod = 1; | |
4daffe35 AK |
1111 | |
1112 | usb_deregister(&mwifiex_usb_driver); | |
1113 | } | |
1114 | ||
1115 | module_init(mwifiex_usb_init_module); | |
1116 | module_exit(mwifiex_usb_cleanup_module); | |
1117 | ||
1118 | MODULE_AUTHOR("Marvell International Ltd."); | |
1119 | MODULE_DESCRIPTION("Marvell WiFi-Ex USB Driver version" USB_VERSION); | |
1120 | MODULE_VERSION(USB_VERSION); | |
1121 | MODULE_LICENSE("GPL v2"); | |
9e6f3f47 | 1122 | MODULE_FIRMWARE(USB8766_DEFAULT_FW_NAME); |
68458ded | 1123 | MODULE_FIRMWARE(USB8797_DEFAULT_FW_NAME); |
eaa3d9fa | 1124 | MODULE_FIRMWARE(USB8801_DEFAULT_FW_NAME); |
68458ded | 1125 | MODULE_FIRMWARE(USB8897_DEFAULT_FW_NAME); |