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)}, | |
6d85ef00 ZL |
45 | /* 8997 */ |
46 | {USB_DEVICE(USB8XXX_VID, USB8997_PID_1)}, | |
47 | {USB_DEVICE_AND_INTERFACE_INFO(USB8XXX_VID, USB8997_PID_2, | |
48 | USB_CLASS_VENDOR_SPEC, | |
49 | USB_SUBCLASS_VENDOR_SPEC, 0xff)}, | |
4daffe35 AK |
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 { | |
354a1947 | 247 | if (atomic_read(&adapter->rx_pending) <= HIGH_RX_PENDING) { |
cf6a64fd | 248 | mwifiex_usb_submit_rx_urb(context, size); |
354a1947 | 249 | } else { |
11bdc440 RA |
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; | |
308fe29e ZL |
262 | struct usb_tx_data_port *port; |
263 | int i; | |
4daffe35 | 264 | |
acebe8c1 ZL |
265 | mwifiex_dbg(adapter, INFO, |
266 | "%s: status: %d\n", __func__, urb->status); | |
4daffe35 AK |
267 | |
268 | if (context->ep == card->tx_cmd_ep) { | |
acebe8c1 ZL |
269 | mwifiex_dbg(adapter, CMD, |
270 | "%s: CMD\n", __func__); | |
4daffe35 AK |
271 | atomic_dec(&card->tx_cmd_urb_pending); |
272 | adapter->cmd_sent = false; | |
273 | } else { | |
acebe8c1 ZL |
274 | mwifiex_dbg(adapter, DATA, |
275 | "%s: DATA\n", __func__); | |
308fe29e ZL |
276 | for (i = 0; i < MWIFIEX_TX_DATA_PORT; i++) { |
277 | port = &card->port[i]; | |
278 | if (context->ep == port->tx_data_ep) { | |
279 | atomic_dec(&port->tx_data_urb_pending); | |
735ab6bf | 280 | port->block_status = false; |
308fe29e ZL |
281 | break; |
282 | } | |
283 | } | |
d9414443 | 284 | adapter->data_sent = false; |
47411a06 | 285 | mwifiex_write_data_complete(adapter, context->skb, 0, |
4daffe35 AK |
286 | urb->status ? -1 : 0); |
287 | } | |
288 | ||
7e4e5d2c ZL |
289 | if (card->mc_resync_flag) |
290 | mwifiex_multi_chan_resync(adapter); | |
291 | ||
b2713f67 | 292 | mwifiex_queue_main_work(adapter); |
4daffe35 AK |
293 | |
294 | return; | |
295 | } | |
296 | ||
297 | static int mwifiex_usb_submit_rx_urb(struct urb_context *ctx, int size) | |
298 | { | |
299 | struct mwifiex_adapter *adapter = ctx->adapter; | |
300 | struct usb_card_rec *card = (struct usb_card_rec *)adapter->card; | |
301 | ||
302 | if (card->rx_cmd_ep != ctx->ep) { | |
303 | ctx->skb = dev_alloc_skb(size); | |
304 | if (!ctx->skb) { | |
acebe8c1 ZL |
305 | mwifiex_dbg(adapter, ERROR, |
306 | "%s: dev_alloc_skb failed\n", __func__); | |
4daffe35 AK |
307 | return -ENOMEM; |
308 | } | |
309 | } | |
310 | ||
311 | usb_fill_bulk_urb(ctx->urb, card->udev, | |
312 | usb_rcvbulkpipe(card->udev, ctx->ep), ctx->skb->data, | |
313 | size, mwifiex_usb_rx_complete, (void *)ctx); | |
314 | ||
315 | if (card->rx_cmd_ep == ctx->ep) | |
316 | atomic_inc(&card->rx_cmd_urb_pending); | |
317 | else | |
318 | atomic_inc(&card->rx_data_urb_pending); | |
319 | ||
320 | if (usb_submit_urb(ctx->urb, GFP_ATOMIC)) { | |
acebe8c1 | 321 | mwifiex_dbg(adapter, ERROR, "usb_submit_urb failed\n"); |
4daffe35 AK |
322 | dev_kfree_skb_any(ctx->skb); |
323 | ctx->skb = NULL; | |
324 | ||
325 | if (card->rx_cmd_ep == ctx->ep) | |
326 | atomic_dec(&card->rx_cmd_urb_pending); | |
327 | else | |
328 | atomic_dec(&card->rx_data_urb_pending); | |
329 | ||
330 | return -1; | |
331 | } | |
332 | ||
333 | return 0; | |
334 | } | |
335 | ||
336 | static void mwifiex_usb_free(struct usb_card_rec *card) | |
337 | { | |
308fe29e ZL |
338 | struct usb_tx_data_port *port; |
339 | int i, j; | |
4daffe35 AK |
340 | |
341 | if (atomic_read(&card->rx_cmd_urb_pending) && card->rx_cmd.urb) | |
342 | usb_kill_urb(card->rx_cmd.urb); | |
343 | ||
344 | usb_free_urb(card->rx_cmd.urb); | |
345 | card->rx_cmd.urb = NULL; | |
346 | ||
347 | if (atomic_read(&card->rx_data_urb_pending)) | |
348 | for (i = 0; i < MWIFIEX_RX_DATA_URB; i++) | |
349 | if (card->rx_data_list[i].urb) | |
350 | usb_kill_urb(card->rx_data_list[i].urb); | |
351 | ||
352 | for (i = 0; i < MWIFIEX_RX_DATA_URB; i++) { | |
353 | usb_free_urb(card->rx_data_list[i].urb); | |
354 | card->rx_data_list[i].urb = NULL; | |
355 | } | |
356 | ||
308fe29e ZL |
357 | for (i = 0; i < MWIFIEX_TX_DATA_PORT; i++) { |
358 | port = &card->port[i]; | |
359 | for (j = 0; j < MWIFIEX_TX_DATA_URB; j++) { | |
360 | usb_free_urb(port->tx_data_list[j].urb); | |
361 | port->tx_data_list[j].urb = NULL; | |
362 | } | |
4daffe35 AK |
363 | } |
364 | ||
365 | usb_free_urb(card->tx_cmd.urb); | |
366 | card->tx_cmd.urb = NULL; | |
367 | ||
368 | return; | |
369 | } | |
370 | ||
371 | /* This function probes an mwifiex device and registers it. It allocates | |
372 | * the card structure, initiates the device registration and initialization | |
373 | * procedure by adding a logical interface. | |
374 | */ | |
375 | static int mwifiex_usb_probe(struct usb_interface *intf, | |
376 | const struct usb_device_id *id) | |
377 | { | |
378 | struct usb_device *udev = interface_to_usbdev(intf); | |
379 | struct usb_host_interface *iface_desc = intf->cur_altsetting; | |
380 | struct usb_endpoint_descriptor *epd; | |
381 | int ret, i; | |
382 | struct usb_card_rec *card; | |
383 | u16 id_vendor, id_product, bcd_device, bcd_usb; | |
384 | ||
385 | card = kzalloc(sizeof(struct usb_card_rec), GFP_KERNEL); | |
386 | if (!card) | |
387 | return -ENOMEM; | |
388 | ||
389 | id_vendor = le16_to_cpu(udev->descriptor.idVendor); | |
390 | id_product = le16_to_cpu(udev->descriptor.idProduct); | |
391 | bcd_device = le16_to_cpu(udev->descriptor.bcdDevice); | |
392 | bcd_usb = le16_to_cpu(udev->descriptor.bcdUSB); | |
393 | pr_debug("info: VID/PID = %X/%X, Boot2 version = %X\n", | |
394 | id_vendor, id_product, bcd_device); | |
395 | ||
396 | /* PID_1 is used for firmware downloading only */ | |
68458ded | 397 | switch (id_product) { |
9e6f3f47 | 398 | case USB8766_PID_1: |
68458ded | 399 | case USB8797_PID_1: |
eaa3d9fa | 400 | case USB8801_PID_1: |
6d85ef00 | 401 | case USB8997_PID_1: |
68458ded YAP |
402 | card->usb_boot_state = USB8XXX_FW_DNLD; |
403 | break; | |
9e6f3f47 | 404 | case USB8766_PID_2: |
68458ded | 405 | case USB8797_PID_2: |
eaa3d9fa | 406 | case USB8801_PID_2: |
6d85ef00 | 407 | case USB8997_PID_2: |
68458ded YAP |
408 | card->usb_boot_state = USB8XXX_FW_READY; |
409 | break; | |
410 | default: | |
fe3881cf | 411 | pr_warn("unknown id_product %#x\n", id_product); |
68458ded YAP |
412 | card->usb_boot_state = USB8XXX_FW_DNLD; |
413 | break; | |
414 | } | |
4daffe35 AK |
415 | |
416 | card->udev = udev; | |
417 | card->intf = intf; | |
418 | ||
69797838 | 419 | pr_debug("info: bcdUSB=%#x Device Class=%#x SubClass=%#x Protocol=%#x\n", |
4daffe35 AK |
420 | udev->descriptor.bcdUSB, udev->descriptor.bDeviceClass, |
421 | udev->descriptor.bDeviceSubClass, | |
422 | udev->descriptor.bDeviceProtocol); | |
423 | ||
424 | for (i = 0; i < iface_desc->desc.bNumEndpoints; ++i) { | |
425 | epd = &iface_desc->endpoint[i].desc; | |
426 | if (usb_endpoint_dir_in(epd) && | |
427 | usb_endpoint_num(epd) == MWIFIEX_USB_EP_CMD_EVENT && | |
428 | usb_endpoint_xfer_bulk(epd)) { | |
429 | pr_debug("info: bulk IN: max pkt size: %d, addr: %d\n", | |
430 | le16_to_cpu(epd->wMaxPacketSize), | |
431 | epd->bEndpointAddress); | |
432 | card->rx_cmd_ep = usb_endpoint_num(epd); | |
433 | atomic_set(&card->rx_cmd_urb_pending, 0); | |
434 | } | |
435 | if (usb_endpoint_dir_in(epd) && | |
436 | usb_endpoint_num(epd) == MWIFIEX_USB_EP_DATA && | |
437 | usb_endpoint_xfer_bulk(epd)) { | |
438 | pr_debug("info: bulk IN: max pkt size: %d, addr: %d\n", | |
439 | le16_to_cpu(epd->wMaxPacketSize), | |
440 | epd->bEndpointAddress); | |
441 | card->rx_data_ep = usb_endpoint_num(epd); | |
442 | atomic_set(&card->rx_data_urb_pending, 0); | |
443 | } | |
444 | if (usb_endpoint_dir_out(epd) && | |
445 | usb_endpoint_num(epd) == MWIFIEX_USB_EP_DATA && | |
446 | usb_endpoint_xfer_bulk(epd)) { | |
447 | pr_debug("info: bulk OUT: max pkt size: %d, addr: %d\n", | |
448 | le16_to_cpu(epd->wMaxPacketSize), | |
449 | epd->bEndpointAddress); | |
308fe29e ZL |
450 | card->port[0].tx_data_ep = usb_endpoint_num(epd); |
451 | atomic_set(&card->port[0].tx_data_urb_pending, 0); | |
452 | } | |
453 | if (usb_endpoint_dir_out(epd) && | |
454 | usb_endpoint_num(epd) == MWIFIEX_USB_EP_DATA_CH2 && | |
455 | usb_endpoint_xfer_bulk(epd)) { | |
456 | pr_debug("info: bulk OUT chan2:\t" | |
457 | "max pkt size: %d, addr: %d\n", | |
458 | le16_to_cpu(epd->wMaxPacketSize), | |
459 | epd->bEndpointAddress); | |
460 | card->port[1].tx_data_ep = usb_endpoint_num(epd); | |
461 | atomic_set(&card->port[1].tx_data_urb_pending, 0); | |
4daffe35 AK |
462 | } |
463 | if (usb_endpoint_dir_out(epd) && | |
464 | usb_endpoint_num(epd) == MWIFIEX_USB_EP_CMD_EVENT && | |
465 | usb_endpoint_xfer_bulk(epd)) { | |
466 | pr_debug("info: bulk OUT: max pkt size: %d, addr: %d\n", | |
467 | le16_to_cpu(epd->wMaxPacketSize), | |
468 | epd->bEndpointAddress); | |
469 | card->tx_cmd_ep = usb_endpoint_num(epd); | |
470 | atomic_set(&card->tx_cmd_urb_pending, 0); | |
471 | card->bulk_out_maxpktsize = | |
472 | le16_to_cpu(epd->wMaxPacketSize); | |
473 | } | |
474 | } | |
475 | ||
476 | usb_set_intfdata(intf, card); | |
477 | ||
478 | ret = mwifiex_add_card(card, &add_remove_card_sem, &usb_ops, | |
479 | MWIFIEX_USB); | |
480 | if (ret) { | |
481 | pr_err("%s: mwifiex_add_card failed: %d\n", __func__, ret); | |
482 | usb_reset_device(udev); | |
483 | kfree(card); | |
484 | return ret; | |
485 | } | |
486 | ||
487 | usb_get_dev(udev); | |
488 | ||
489 | return 0; | |
490 | } | |
491 | ||
492 | /* Kernel needs to suspend all functions separately. Therefore all | |
493 | * registered functions must have drivers with suspend and resume | |
494 | * methods. Failing that the kernel simply removes the whole card. | |
495 | * | |
496 | * If already not suspended, this function allocates and sends a | |
497 | * 'host sleep activate' request to the firmware and turns off the traffic. | |
498 | */ | |
499 | static int mwifiex_usb_suspend(struct usb_interface *intf, pm_message_t message) | |
500 | { | |
501 | struct usb_card_rec *card = usb_get_intfdata(intf); | |
502 | struct mwifiex_adapter *adapter; | |
308fe29e ZL |
503 | struct usb_tx_data_port *port; |
504 | int i, j; | |
4daffe35 AK |
505 | |
506 | if (!card || !card->adapter) { | |
507 | pr_err("%s: card or card->adapter is NULL\n", __func__); | |
508 | return 0; | |
509 | } | |
510 | adapter = card->adapter; | |
511 | ||
512 | if (unlikely(adapter->is_suspended)) | |
acebe8c1 ZL |
513 | mwifiex_dbg(adapter, WARN, |
514 | "Device already suspended\n"); | |
4daffe35 AK |
515 | |
516 | mwifiex_enable_hs(adapter); | |
517 | ||
518 | /* 'is_suspended' flag indicates device is suspended. | |
519 | * It must be set here before the usb_kill_urb() calls. Reason | |
520 | * is in the complete handlers, urb->status(= -ENOENT) and | |
521 | * this flag is used in combination to distinguish between a | |
522 | * 'suspended' state and a 'disconnect' one. | |
523 | */ | |
524 | adapter->is_suspended = true; | |
c0dbba66 | 525 | adapter->hs_enabling = false; |
4daffe35 | 526 | |
4daffe35 AK |
527 | if (atomic_read(&card->rx_cmd_urb_pending) && card->rx_cmd.urb) |
528 | usb_kill_urb(card->rx_cmd.urb); | |
529 | ||
530 | if (atomic_read(&card->rx_data_urb_pending)) | |
531 | for (i = 0; i < MWIFIEX_RX_DATA_URB; i++) | |
532 | if (card->rx_data_list[i].urb) | |
533 | usb_kill_urb(card->rx_data_list[i].urb); | |
534 | ||
308fe29e ZL |
535 | for (i = 0; i < MWIFIEX_TX_DATA_PORT; i++) { |
536 | port = &card->port[i]; | |
537 | for (j = 0; j < MWIFIEX_TX_DATA_URB; j++) { | |
538 | if (port->tx_data_list[j].urb) | |
539 | usb_kill_urb(port->tx_data_list[j].urb); | |
540 | } | |
541 | } | |
4daffe35 AK |
542 | |
543 | if (card->tx_cmd.urb) | |
544 | usb_kill_urb(card->tx_cmd.urb); | |
545 | ||
546 | return 0; | |
547 | } | |
548 | ||
549 | /* Kernel needs to suspend all functions separately. Therefore all | |
550 | * registered functions must have drivers with suspend and resume | |
551 | * methods. Failing that the kernel simply removes the whole card. | |
552 | * | |
553 | * If already not resumed, this function turns on the traffic and | |
554 | * sends a 'host sleep cancel' request to the firmware. | |
555 | */ | |
556 | static int mwifiex_usb_resume(struct usb_interface *intf) | |
557 | { | |
558 | struct usb_card_rec *card = usb_get_intfdata(intf); | |
559 | struct mwifiex_adapter *adapter; | |
560 | int i; | |
561 | ||
562 | if (!card || !card->adapter) { | |
563 | pr_err("%s: card or card->adapter is NULL\n", __func__); | |
564 | return 0; | |
565 | } | |
566 | adapter = card->adapter; | |
567 | ||
568 | if (unlikely(!adapter->is_suspended)) { | |
acebe8c1 ZL |
569 | mwifiex_dbg(adapter, WARN, |
570 | "Device already resumed\n"); | |
4daffe35 AK |
571 | return 0; |
572 | } | |
573 | ||
574 | /* Indicate device resumed. The netdev queue will be resumed only | |
575 | * after the urbs have been re-submitted | |
576 | */ | |
577 | adapter->is_suspended = false; | |
578 | ||
579 | if (!atomic_read(&card->rx_data_urb_pending)) | |
580 | for (i = 0; i < MWIFIEX_RX_DATA_URB; i++) | |
581 | mwifiex_usb_submit_rx_urb(&card->rx_data_list[i], | |
582 | MWIFIEX_RX_DATA_BUF_SIZE); | |
583 | ||
584 | if (!atomic_read(&card->rx_cmd_urb_pending)) { | |
585 | card->rx_cmd.skb = dev_alloc_skb(MWIFIEX_RX_CMD_BUF_SIZE); | |
586 | if (card->rx_cmd.skb) | |
587 | mwifiex_usb_submit_rx_urb(&card->rx_cmd, | |
588 | MWIFIEX_RX_CMD_BUF_SIZE); | |
589 | } | |
590 | ||
4daffe35 AK |
591 | /* Disable Host Sleep */ |
592 | if (adapter->hs_activated) | |
593 | mwifiex_cancel_hs(mwifiex_get_priv(adapter, | |
594 | MWIFIEX_BSS_ROLE_ANY), | |
595 | MWIFIEX_ASYNC_CMD); | |
596 | ||
4daffe35 AK |
597 | return 0; |
598 | } | |
599 | ||
600 | static void mwifiex_usb_disconnect(struct usb_interface *intf) | |
601 | { | |
602 | struct usb_card_rec *card = usb_get_intfdata(intf); | |
3fffd7c1 | 603 | struct mwifiex_adapter *adapter; |
4daffe35 | 604 | |
3fffd7c1 AK |
605 | if (!card || !card->adapter) { |
606 | pr_err("%s: card or card->adapter is NULL\n", __func__); | |
4daffe35 AK |
607 | return; |
608 | } | |
609 | ||
3fffd7c1 AK |
610 | adapter = card->adapter; |
611 | if (!adapter->priv_num) | |
612 | return; | |
4daffe35 | 613 | |
cf5383b0 | 614 | if (user_rmmod && !adapter->mfg_mode) { |
3fffd7c1 AK |
615 | #ifdef CONFIG_PM |
616 | if (adapter->is_suspended) | |
617 | mwifiex_usb_resume(intf); | |
618 | #endif | |
619 | ||
620 | mwifiex_deauthenticate_all(adapter); | |
353d2a69 | 621 | |
3fffd7c1 AK |
622 | mwifiex_init_shutdown_fw(mwifiex_get_priv(adapter, |
623 | MWIFIEX_BSS_ROLE_ANY), | |
624 | MWIFIEX_FUNC_SHUTDOWN); | |
353d2a69 | 625 | } |
4daffe35 | 626 | |
3fffd7c1 AK |
627 | mwifiex_usb_free(card); |
628 | ||
acebe8c1 ZL |
629 | mwifiex_dbg(adapter, FATAL, |
630 | "%s: removing card\n", __func__); | |
3fffd7c1 AK |
631 | mwifiex_remove_card(adapter, &add_remove_card_sem); |
632 | ||
4daffe35 AK |
633 | usb_set_intfdata(intf, NULL); |
634 | usb_put_dev(interface_to_usbdev(intf)); | |
635 | kfree(card); | |
636 | ||
637 | return; | |
638 | } | |
639 | ||
640 | static struct usb_driver mwifiex_usb_driver = { | |
e4ceb0f4 | 641 | .name = "mwifiex_usb", |
4daffe35 AK |
642 | .probe = mwifiex_usb_probe, |
643 | .disconnect = mwifiex_usb_disconnect, | |
644 | .id_table = mwifiex_usb_table, | |
645 | .suspend = mwifiex_usb_suspend, | |
646 | .resume = mwifiex_usb_resume, | |
3fffd7c1 | 647 | .soft_unbind = 1, |
4daffe35 AK |
648 | }; |
649 | ||
650 | static int mwifiex_usb_tx_init(struct mwifiex_adapter *adapter) | |
651 | { | |
652 | struct usb_card_rec *card = (struct usb_card_rec *)adapter->card; | |
308fe29e ZL |
653 | struct usb_tx_data_port *port; |
654 | int i, j; | |
4daffe35 AK |
655 | |
656 | card->tx_cmd.adapter = adapter; | |
657 | card->tx_cmd.ep = card->tx_cmd_ep; | |
658 | ||
659 | card->tx_cmd.urb = usb_alloc_urb(0, GFP_KERNEL); | |
dbea99d6 | 660 | if (!card->tx_cmd.urb) |
4daffe35 | 661 | return -ENOMEM; |
4daffe35 | 662 | |
308fe29e ZL |
663 | for (i = 0; i < MWIFIEX_TX_DATA_PORT; i++) { |
664 | port = &card->port[i]; | |
665 | if (!port->tx_data_ep) | |
666 | continue; | |
667 | port->tx_data_ix = 0; | |
7e4e5d2c ZL |
668 | if (port->tx_data_ep == MWIFIEX_USB_EP_DATA) |
669 | port->block_status = false; | |
670 | else | |
671 | port->block_status = true; | |
308fe29e ZL |
672 | for (j = 0; j < MWIFIEX_TX_DATA_URB; j++) { |
673 | port->tx_data_list[j].adapter = adapter; | |
674 | port->tx_data_list[j].ep = port->tx_data_ep; | |
675 | port->tx_data_list[j].urb = | |
676 | usb_alloc_urb(0, GFP_KERNEL); | |
dbea99d6 | 677 | if (!port->tx_data_list[j].urb) |
308fe29e | 678 | return -ENOMEM; |
4daffe35 AK |
679 | } |
680 | } | |
681 | ||
682 | return 0; | |
683 | } | |
684 | ||
685 | static int mwifiex_usb_rx_init(struct mwifiex_adapter *adapter) | |
686 | { | |
687 | struct usb_card_rec *card = (struct usb_card_rec *)adapter->card; | |
688 | int i; | |
689 | ||
690 | card->rx_cmd.adapter = adapter; | |
691 | card->rx_cmd.ep = card->rx_cmd_ep; | |
692 | ||
693 | card->rx_cmd.urb = usb_alloc_urb(0, GFP_KERNEL); | |
dbea99d6 | 694 | if (!card->rx_cmd.urb) |
4daffe35 | 695 | return -ENOMEM; |
4daffe35 AK |
696 | |
697 | card->rx_cmd.skb = dev_alloc_skb(MWIFIEX_RX_CMD_BUF_SIZE); | |
acebe8c1 | 698 | if (!card->rx_cmd.skb) |
4daffe35 | 699 | return -ENOMEM; |
4daffe35 AK |
700 | |
701 | if (mwifiex_usb_submit_rx_urb(&card->rx_cmd, MWIFIEX_RX_CMD_BUF_SIZE)) | |
702 | return -1; | |
703 | ||
704 | for (i = 0; i < MWIFIEX_RX_DATA_URB; i++) { | |
705 | card->rx_data_list[i].adapter = adapter; | |
706 | card->rx_data_list[i].ep = card->rx_data_ep; | |
707 | ||
708 | card->rx_data_list[i].urb = usb_alloc_urb(0, GFP_KERNEL); | |
dbea99d6 | 709 | if (!card->rx_data_list[i].urb) |
4daffe35 | 710 | return -1; |
4daffe35 AK |
711 | if (mwifiex_usb_submit_rx_urb(&card->rx_data_list[i], |
712 | MWIFIEX_RX_DATA_BUF_SIZE)) | |
713 | return -1; | |
714 | } | |
715 | ||
716 | return 0; | |
717 | } | |
718 | ||
719 | static int mwifiex_write_data_sync(struct mwifiex_adapter *adapter, u8 *pbuf, | |
720 | u32 *len, u8 ep, u32 timeout) | |
721 | { | |
722 | struct usb_card_rec *card = adapter->card; | |
723 | int actual_length, ret; | |
724 | ||
725 | if (!(*len % card->bulk_out_maxpktsize)) | |
726 | (*len)++; | |
727 | ||
728 | /* Send the data block */ | |
729 | ret = usb_bulk_msg(card->udev, usb_sndbulkpipe(card->udev, ep), pbuf, | |
730 | *len, &actual_length, timeout); | |
731 | if (ret) { | |
acebe8c1 ZL |
732 | mwifiex_dbg(adapter, ERROR, |
733 | "usb_bulk_msg for tx failed: %d\n", ret); | |
5b2e2ecc | 734 | return ret; |
4daffe35 AK |
735 | } |
736 | ||
737 | *len = actual_length; | |
738 | ||
739 | return ret; | |
740 | } | |
741 | ||
742 | static int mwifiex_read_data_sync(struct mwifiex_adapter *adapter, u8 *pbuf, | |
743 | u32 *len, u8 ep, u32 timeout) | |
744 | { | |
745 | struct usb_card_rec *card = adapter->card; | |
746 | int actual_length, ret; | |
747 | ||
748 | /* Receive the data response */ | |
749 | ret = usb_bulk_msg(card->udev, usb_rcvbulkpipe(card->udev, ep), pbuf, | |
750 | *len, &actual_length, timeout); | |
751 | if (ret) { | |
acebe8c1 ZL |
752 | mwifiex_dbg(adapter, ERROR, |
753 | "usb_bulk_msg for rx failed: %d\n", ret); | |
5b2e2ecc | 754 | return ret; |
4daffe35 AK |
755 | } |
756 | ||
757 | *len = actual_length; | |
758 | ||
759 | return ret; | |
760 | } | |
761 | ||
7e4e5d2c ZL |
762 | static void mwifiex_usb_port_resync(struct mwifiex_adapter *adapter) |
763 | { | |
764 | struct usb_card_rec *card = adapter->card; | |
765 | u8 active_port = MWIFIEX_USB_EP_DATA; | |
766 | struct mwifiex_private *priv = NULL; | |
767 | int i; | |
768 | ||
769 | if (adapter->usb_mc_status) { | |
770 | for (i = 0; i < adapter->priv_num; i++) { | |
771 | priv = adapter->priv[i]; | |
772 | if (!priv) | |
773 | continue; | |
774 | if ((priv->bss_role == MWIFIEX_BSS_ROLE_UAP && | |
775 | !priv->bss_started) || | |
776 | (priv->bss_role == MWIFIEX_BSS_ROLE_STA && | |
777 | !priv->media_connected)) | |
778 | priv->usb_port = MWIFIEX_USB_EP_DATA; | |
779 | } | |
780 | for (i = 0; i < MWIFIEX_TX_DATA_PORT; i++) | |
781 | card->port[i].block_status = false; | |
782 | } else { | |
783 | for (i = 0; i < adapter->priv_num; i++) { | |
784 | priv = adapter->priv[i]; | |
785 | if (!priv) | |
786 | continue; | |
787 | if ((priv->bss_role == MWIFIEX_BSS_ROLE_UAP && | |
788 | priv->bss_started) || | |
789 | (priv->bss_role == MWIFIEX_BSS_ROLE_STA && | |
790 | priv->media_connected)) { | |
791 | active_port = priv->usb_port; | |
792 | break; | |
793 | } | |
794 | } | |
795 | for (i = 0; i < adapter->priv_num; i++) { | |
796 | priv = adapter->priv[i]; | |
797 | if (priv) | |
798 | priv->usb_port = active_port; | |
799 | } | |
800 | for (i = 0; i < MWIFIEX_TX_DATA_PORT; i++) { | |
801 | if (active_port == card->port[i].tx_data_ep) | |
802 | card->port[i].block_status = false; | |
803 | else | |
804 | card->port[i].block_status = true; | |
805 | } | |
806 | } | |
807 | } | |
808 | ||
735ab6bf ZL |
809 | static bool mwifiex_usb_is_port_ready(struct mwifiex_private *priv) |
810 | { | |
811 | struct usb_card_rec *card = priv->adapter->card; | |
812 | int idx; | |
813 | ||
814 | for (idx = 0; idx < MWIFIEX_TX_DATA_PORT; idx++) { | |
815 | if (priv->usb_port == card->port[idx].tx_data_ep) | |
816 | return !card->port[idx].block_status; | |
817 | } | |
818 | ||
819 | return false; | |
820 | } | |
821 | ||
822 | static inline u8 mwifiex_usb_data_sent(struct mwifiex_adapter *adapter) | |
823 | { | |
824 | struct usb_card_rec *card = adapter->card; | |
825 | int i; | |
826 | ||
827 | for (i = 0; i < MWIFIEX_TX_DATA_PORT; i++) | |
828 | if (!card->port[i].block_status) | |
829 | return false; | |
830 | ||
831 | return true; | |
832 | } | |
833 | ||
4daffe35 AK |
834 | /* This function write a command/data packet to card. */ |
835 | static int mwifiex_usb_host_to_card(struct mwifiex_adapter *adapter, u8 ep, | |
836 | struct sk_buff *skb, | |
837 | struct mwifiex_tx_param *tx_param) | |
838 | { | |
839 | struct usb_card_rec *card = adapter->card; | |
308fe29e ZL |
840 | struct urb_context *context = NULL; |
841 | struct usb_tx_data_port *port = NULL; | |
4daffe35 AK |
842 | u8 *data = (u8 *)skb->data; |
843 | struct urb *tx_urb; | |
735ab6bf | 844 | int idx, ret; |
4daffe35 AK |
845 | |
846 | if (adapter->is_suspended) { | |
acebe8c1 ZL |
847 | mwifiex_dbg(adapter, ERROR, |
848 | "%s: not allowed while suspended\n", __func__); | |
4daffe35 AK |
849 | return -1; |
850 | } | |
851 | ||
852 | if (adapter->surprise_removed) { | |
acebe8c1 | 853 | mwifiex_dbg(adapter, ERROR, "%s: device removed\n", __func__); |
4daffe35 AK |
854 | return -1; |
855 | } | |
856 | ||
acebe8c1 | 857 | mwifiex_dbg(adapter, INFO, "%s: ep=%d\n", __func__, ep); |
4daffe35 AK |
858 | |
859 | if (ep == card->tx_cmd_ep) { | |
860 | context = &card->tx_cmd; | |
861 | } else { | |
308fe29e ZL |
862 | for (idx = 0; idx < MWIFIEX_TX_DATA_PORT; idx++) { |
863 | if (ep == card->port[idx].tx_data_ep) { | |
864 | port = &card->port[idx]; | |
865 | if (atomic_read(&port->tx_data_urb_pending) | |
866 | >= MWIFIEX_TX_DATA_URB) { | |
735ab6bf ZL |
867 | port->block_status = true; |
868 | ret = -EBUSY; | |
869 | goto done; | |
308fe29e ZL |
870 | } |
871 | if (port->tx_data_ix >= MWIFIEX_TX_DATA_URB) | |
872 | port->tx_data_ix = 0; | |
873 | context = | |
874 | &port->tx_data_list[port->tx_data_ix++]; | |
875 | break; | |
876 | } | |
877 | } | |
878 | if (!port) { | |
879 | mwifiex_dbg(adapter, ERROR, "Wrong usb tx data port\n"); | |
880 | return -1; | |
881 | } | |
4daffe35 AK |
882 | } |
883 | ||
884 | context->adapter = adapter; | |
885 | context->ep = ep; | |
886 | context->skb = skb; | |
887 | tx_urb = context->urb; | |
888 | ||
889 | usb_fill_bulk_urb(tx_urb, card->udev, usb_sndbulkpipe(card->udev, ep), | |
890 | data, skb->len, mwifiex_usb_tx_complete, | |
891 | (void *)context); | |
892 | ||
893 | tx_urb->transfer_flags |= URB_ZERO_PACKET; | |
894 | ||
895 | if (ep == card->tx_cmd_ep) | |
896 | atomic_inc(&card->tx_cmd_urb_pending); | |
897 | else | |
308fe29e | 898 | atomic_inc(&port->tx_data_urb_pending); |
4daffe35 AK |
899 | |
900 | if (usb_submit_urb(tx_urb, GFP_ATOMIC)) { | |
acebe8c1 ZL |
901 | mwifiex_dbg(adapter, ERROR, |
902 | "%s: usb_submit_urb failed\n", __func__); | |
4daffe35 AK |
903 | if (ep == card->tx_cmd_ep) { |
904 | atomic_dec(&card->tx_cmd_urb_pending); | |
905 | } else { | |
308fe29e | 906 | atomic_dec(&port->tx_data_urb_pending); |
735ab6bf | 907 | port->block_status = false; |
308fe29e ZL |
908 | if (port->tx_data_ix) |
909 | port->tx_data_ix--; | |
4daffe35 | 910 | else |
308fe29e | 911 | port->tx_data_ix = MWIFIEX_TX_DATA_URB; |
4daffe35 AK |
912 | } |
913 | ||
914 | return -1; | |
915 | } else { | |
308fe29e ZL |
916 | if (ep != card->tx_cmd_ep && |
917 | atomic_read(&port->tx_data_urb_pending) == | |
d9414443 | 918 | MWIFIEX_TX_DATA_URB) { |
735ab6bf ZL |
919 | port->block_status = true; |
920 | ret = -ENOSR; | |
921 | goto done; | |
d9414443 | 922 | } |
4daffe35 AK |
923 | } |
924 | ||
925 | return -EINPROGRESS; | |
735ab6bf ZL |
926 | |
927 | done: | |
928 | if (ep != card->tx_cmd_ep) | |
929 | adapter->data_sent = mwifiex_usb_data_sent(adapter); | |
930 | ||
931 | return ret; | |
4daffe35 AK |
932 | } |
933 | ||
934 | /* This function register usb device and initialize parameter. */ | |
935 | static int mwifiex_register_dev(struct mwifiex_adapter *adapter) | |
936 | { | |
937 | struct usb_card_rec *card = (struct usb_card_rec *)adapter->card; | |
938 | ||
939 | card->adapter = adapter; | |
940 | adapter->dev = &card->udev->dev; | |
4daffe35 | 941 | |
68458ded | 942 | switch (le16_to_cpu(card->udev->descriptor.idProduct)) { |
6d85ef00 ZL |
943 | case USB8997_PID_1: |
944 | case USB8997_PID_2: | |
945 | adapter->tx_buf_size = MWIFIEX_TX_DATA_BUF_SIZE_4K; | |
946 | strcpy(adapter->fw_name, USB8997_DEFAULT_FW_NAME); | |
947 | adapter->ext_scan = true; | |
948 | break; | |
9e6f3f47 KE |
949 | case USB8766_PID_1: |
950 | case USB8766_PID_2: | |
951 | adapter->tx_buf_size = MWIFIEX_TX_DATA_BUF_SIZE_2K; | |
952 | strcpy(adapter->fw_name, USB8766_DEFAULT_FW_NAME); | |
1fe192d8 | 953 | adapter->ext_scan = true; |
9e6f3f47 | 954 | break; |
eaa3d9fa YAP |
955 | case USB8801_PID_1: |
956 | case USB8801_PID_2: | |
957 | adapter->tx_buf_size = MWIFIEX_TX_DATA_BUF_SIZE_2K; | |
958 | strcpy(adapter->fw_name, USB8801_DEFAULT_FW_NAME); | |
1fe192d8 | 959 | adapter->ext_scan = false; |
eaa3d9fa | 960 | break; |
68458ded YAP |
961 | case USB8797_PID_1: |
962 | case USB8797_PID_2: | |
963 | default: | |
828cf222 | 964 | adapter->tx_buf_size = MWIFIEX_TX_DATA_BUF_SIZE_2K; |
68458ded YAP |
965 | strcpy(adapter->fw_name, USB8797_DEFAULT_FW_NAME); |
966 | break; | |
967 | } | |
968 | ||
2b0f997d | 969 | adapter->usb_mc_status = false; |
7e4e5d2c | 970 | adapter->usb_mc_setup = false; |
2b0f997d | 971 | |
4daffe35 AK |
972 | return 0; |
973 | } | |
974 | ||
2739a95d AK |
975 | static void mwifiex_unregister_dev(struct mwifiex_adapter *adapter) |
976 | { | |
977 | struct usb_card_rec *card = (struct usb_card_rec *)adapter->card; | |
978 | ||
353d2a69 | 979 | card->adapter = NULL; |
2739a95d AK |
980 | } |
981 | ||
4daffe35 AK |
982 | static int mwifiex_prog_fw_w_helper(struct mwifiex_adapter *adapter, |
983 | struct mwifiex_fw_image *fw) | |
984 | { | |
985 | int ret = 0; | |
986 | u8 *firmware = fw->fw_buf, *recv_buff; | |
394f0ed5 DC |
987 | u32 retries = USB8XXX_FW_MAX_RETRY + 1; |
988 | u32 dlen; | |
4daffe35 AK |
989 | u32 fw_seqnum = 0, tlen = 0, dnld_cmd = 0; |
990 | struct fw_data *fwdata; | |
991 | struct fw_sync_header sync_fw; | |
992 | u8 check_winner = 1; | |
993 | ||
994 | if (!firmware) { | |
acebe8c1 ZL |
995 | mwifiex_dbg(adapter, ERROR, |
996 | "No firmware image found! Terminating download\n"); | |
4daffe35 AK |
997 | ret = -1; |
998 | goto fw_exit; | |
999 | } | |
1000 | ||
1001 | /* Allocate memory for transmit */ | |
1002 | fwdata = kzalloc(FW_DNLD_TX_BUF_SIZE, GFP_KERNEL); | |
3b1f0e86 DC |
1003 | if (!fwdata) { |
1004 | ret = -ENOMEM; | |
4daffe35 | 1005 | goto fw_exit; |
3b1f0e86 | 1006 | } |
4daffe35 AK |
1007 | |
1008 | /* Allocate memory for receive */ | |
1009 | recv_buff = kzalloc(FW_DNLD_RX_BUF_SIZE, GFP_KERNEL); | |
e0bdef0f DC |
1010 | if (!recv_buff) { |
1011 | ret = -ENOMEM; | |
4daffe35 | 1012 | goto cleanup; |
e0bdef0f | 1013 | } |
4daffe35 AK |
1014 | |
1015 | do { | |
1016 | /* Send pseudo data to check winner status first */ | |
1017 | if (check_winner) { | |
1018 | memset(&fwdata->fw_hdr, 0, sizeof(struct fw_header)); | |
1019 | dlen = 0; | |
1020 | } else { | |
1021 | /* copy the header of the fw_data to get the length */ | |
fc40ca92 SL |
1022 | memcpy(&fwdata->fw_hdr, &firmware[tlen], |
1023 | sizeof(struct fw_header)); | |
4daffe35 AK |
1024 | |
1025 | dlen = le32_to_cpu(fwdata->fw_hdr.data_len); | |
1026 | dnld_cmd = le32_to_cpu(fwdata->fw_hdr.dnld_cmd); | |
1027 | tlen += sizeof(struct fw_header); | |
1028 | ||
fc40ca92 | 1029 | memcpy(fwdata->data, &firmware[tlen], dlen); |
4daffe35 AK |
1030 | |
1031 | fwdata->seq_num = cpu_to_le32(fw_seqnum); | |
1032 | tlen += dlen; | |
1033 | } | |
1034 | ||
1035 | /* If the send/receive fails or CRC occurs then retry */ | |
394f0ed5 | 1036 | while (--retries) { |
4daffe35 AK |
1037 | u8 *buf = (u8 *)fwdata; |
1038 | u32 len = FW_DATA_XMIT_SIZE; | |
1039 | ||
1040 | /* send the firmware block */ | |
1041 | ret = mwifiex_write_data_sync(adapter, buf, &len, | |
1042 | MWIFIEX_USB_EP_CMD_EVENT, | |
1043 | MWIFIEX_USB_TIMEOUT); | |
1044 | if (ret) { | |
acebe8c1 ZL |
1045 | mwifiex_dbg(adapter, ERROR, |
1046 | "write_data_sync: failed: %d\n", | |
1047 | ret); | |
4daffe35 AK |
1048 | continue; |
1049 | } | |
1050 | ||
1051 | buf = recv_buff; | |
1052 | len = FW_DNLD_RX_BUF_SIZE; | |
1053 | ||
1054 | /* Receive the firmware block response */ | |
1055 | ret = mwifiex_read_data_sync(adapter, buf, &len, | |
1056 | MWIFIEX_USB_EP_CMD_EVENT, | |
1057 | MWIFIEX_USB_TIMEOUT); | |
1058 | if (ret) { | |
acebe8c1 ZL |
1059 | mwifiex_dbg(adapter, ERROR, |
1060 | "read_data_sync: failed: %d\n", | |
1061 | ret); | |
4daffe35 AK |
1062 | continue; |
1063 | } | |
1064 | ||
1065 | memcpy(&sync_fw, recv_buff, | |
1066 | sizeof(struct fw_sync_header)); | |
1067 | ||
1068 | /* check 1st firmware block resp for highest bit set */ | |
1069 | if (check_winner) { | |
1070 | if (le32_to_cpu(sync_fw.cmd) & 0x80000000) { | |
acebe8c1 ZL |
1071 | mwifiex_dbg(adapter, WARN, |
1072 | "USB is not the winner %#x\n", | |
1073 | sync_fw.cmd); | |
4daffe35 AK |
1074 | |
1075 | /* returning success */ | |
1076 | ret = 0; | |
1077 | goto cleanup; | |
1078 | } | |
1079 | ||
acebe8c1 ZL |
1080 | mwifiex_dbg(adapter, MSG, |
1081 | "start to download FW...\n"); | |
4daffe35 AK |
1082 | |
1083 | check_winner = 0; | |
1084 | break; | |
1085 | } | |
1086 | ||
1087 | /* check the firmware block response for CRC errors */ | |
1088 | if (sync_fw.cmd) { | |
acebe8c1 ZL |
1089 | mwifiex_dbg(adapter, ERROR, |
1090 | "FW received block with CRC %#x\n", | |
1091 | sync_fw.cmd); | |
4daffe35 AK |
1092 | ret = -1; |
1093 | continue; | |
1094 | } | |
1095 | ||
394f0ed5 | 1096 | retries = USB8XXX_FW_MAX_RETRY + 1; |
4daffe35 AK |
1097 | break; |
1098 | } | |
1099 | fw_seqnum++; | |
1100 | } while ((dnld_cmd != FW_HAS_LAST_BLOCK) && retries); | |
1101 | ||
1102 | cleanup: | |
acebe8c1 ZL |
1103 | mwifiex_dbg(adapter, MSG, |
1104 | "info: FW download over, size %d bytes\n", tlen); | |
4daffe35 AK |
1105 | |
1106 | kfree(recv_buff); | |
1107 | kfree(fwdata); | |
1108 | ||
1109 | if (retries) | |
1110 | ret = 0; | |
1111 | fw_exit: | |
1112 | return ret; | |
1113 | } | |
1114 | ||
1115 | static int mwifiex_usb_dnld_fw(struct mwifiex_adapter *adapter, | |
1116 | struct mwifiex_fw_image *fw) | |
1117 | { | |
1118 | int ret; | |
1119 | struct usb_card_rec *card = (struct usb_card_rec *)adapter->card; | |
1120 | ||
68458ded | 1121 | if (card->usb_boot_state == USB8XXX_FW_DNLD) { |
4daffe35 AK |
1122 | ret = mwifiex_prog_fw_w_helper(adapter, fw); |
1123 | if (ret) | |
1124 | return -1; | |
1125 | ||
1126 | /* Boot state changes after successful firmware download */ | |
68458ded | 1127 | if (card->usb_boot_state == USB8XXX_FW_DNLD) |
4daffe35 AK |
1128 | return -1; |
1129 | } | |
1130 | ||
1131 | ret = mwifiex_usb_rx_init(adapter); | |
1132 | if (!ret) | |
1133 | ret = mwifiex_usb_tx_init(adapter); | |
1134 | ||
1135 | return ret; | |
1136 | } | |
1137 | ||
1138 | static void mwifiex_submit_rx_urb(struct mwifiex_adapter *adapter, u8 ep) | |
1139 | { | |
1140 | struct usb_card_rec *card = (struct usb_card_rec *)adapter->card; | |
1141 | ||
1142 | skb_push(card->rx_cmd.skb, INTF_HEADER_LEN); | |
1143 | if ((ep == card->rx_cmd_ep) && | |
1144 | (!atomic_read(&card->rx_cmd_urb_pending))) | |
1145 | mwifiex_usb_submit_rx_urb(&card->rx_cmd, | |
1146 | MWIFIEX_RX_CMD_BUF_SIZE); | |
1147 | ||
1148 | return; | |
1149 | } | |
1150 | ||
1151 | static int mwifiex_usb_cmd_event_complete(struct mwifiex_adapter *adapter, | |
1152 | struct sk_buff *skb) | |
1153 | { | |
4daffe35 AK |
1154 | mwifiex_submit_rx_urb(adapter, MWIFIEX_USB_EP_CMD_EVENT); |
1155 | ||
1156 | return 0; | |
1157 | } | |
1158 | ||
4daffe35 AK |
1159 | /* This function wakes up the card. */ |
1160 | static int mwifiex_pm_wakeup_card(struct mwifiex_adapter *adapter) | |
1161 | { | |
1162 | /* Simulation of HS_AWAKE event */ | |
1163 | adapter->pm_wakeup_fw_try = false; | |
6e9344fd | 1164 | del_timer(&adapter->wakeup_timer); |
4daffe35 AK |
1165 | adapter->pm_wakeup_card_req = false; |
1166 | adapter->ps_state = PS_STATE_AWAKE; | |
1167 | ||
1168 | return 0; | |
1169 | } | |
1170 | ||
cf6a64fd AK |
1171 | static void mwifiex_usb_submit_rem_rx_urbs(struct mwifiex_adapter *adapter) |
1172 | { | |
1173 | struct usb_card_rec *card = (struct usb_card_rec *)adapter->card; | |
1174 | int i; | |
1175 | struct urb_context *ctx; | |
1176 | ||
1177 | for (i = 0; i < MWIFIEX_RX_DATA_URB; i++) { | |
1178 | if (card->rx_data_list[i].skb) | |
1179 | continue; | |
1180 | ctx = &card->rx_data_list[i]; | |
1181 | mwifiex_usb_submit_rx_urb(ctx, MWIFIEX_RX_DATA_BUF_SIZE); | |
1182 | } | |
1183 | } | |
1184 | ||
61754303 XH |
1185 | /* This function is called after the card has woken up. */ |
1186 | static inline int | |
1187 | mwifiex_pm_wakeup_card_complete(struct mwifiex_adapter *adapter) | |
1188 | { | |
1189 | return 0; | |
1190 | } | |
1191 | ||
4daffe35 AK |
1192 | static struct mwifiex_if_ops usb_ops = { |
1193 | .register_dev = mwifiex_register_dev, | |
2739a95d | 1194 | .unregister_dev = mwifiex_unregister_dev, |
4daffe35 AK |
1195 | .wakeup = mwifiex_pm_wakeup_card, |
1196 | .wakeup_complete = mwifiex_pm_wakeup_card_complete, | |
1197 | ||
1198 | /* USB specific */ | |
1199 | .dnld_fw = mwifiex_usb_dnld_fw, | |
1200 | .cmdrsp_complete = mwifiex_usb_cmd_event_complete, | |
1201 | .event_complete = mwifiex_usb_cmd_event_complete, | |
4daffe35 | 1202 | .host_to_card = mwifiex_usb_host_to_card, |
cf6a64fd | 1203 | .submit_rem_rx_urbs = mwifiex_usb_submit_rem_rx_urbs, |
7e4e5d2c | 1204 | .multi_port_resync = mwifiex_usb_port_resync, |
735ab6bf | 1205 | .is_port_ready = mwifiex_usb_is_port_ready, |
4daffe35 AK |
1206 | }; |
1207 | ||
1208 | /* This function initializes the USB driver module. | |
1209 | * | |
1210 | * This initiates the semaphore and registers the device with | |
1211 | * USB bus. | |
1212 | */ | |
1213 | static int mwifiex_usb_init_module(void) | |
1214 | { | |
1215 | int ret; | |
1216 | ||
1217 | pr_debug("Marvell USB8797 Driver\n"); | |
1218 | ||
1219 | sema_init(&add_remove_card_sem, 1); | |
1220 | ||
1221 | ret = usb_register(&mwifiex_usb_driver); | |
1222 | if (ret) | |
1223 | pr_err("Driver register failed!\n"); | |
1224 | else | |
1225 | pr_debug("info: Driver registered successfully!\n"); | |
1226 | ||
1227 | return ret; | |
1228 | } | |
1229 | ||
1230 | /* This function cleans up the USB driver. | |
1231 | * | |
1232 | * The following major steps are followed in .disconnect for cleanup: | |
1233 | * - Resume the device if its suspended | |
1234 | * - Disconnect the device if connected | |
1235 | * - Shutdown the firmware | |
1236 | * - Unregister the device from USB bus. | |
1237 | */ | |
1238 | static void mwifiex_usb_cleanup_module(void) | |
1239 | { | |
1240 | if (!down_interruptible(&add_remove_card_sem)) | |
1241 | up(&add_remove_card_sem); | |
1242 | ||
3fffd7c1 AK |
1243 | /* set the flag as user is removing this module */ |
1244 | user_rmmod = 1; | |
4daffe35 AK |
1245 | |
1246 | usb_deregister(&mwifiex_usb_driver); | |
1247 | } | |
1248 | ||
1249 | module_init(mwifiex_usb_init_module); | |
1250 | module_exit(mwifiex_usb_cleanup_module); | |
1251 | ||
1252 | MODULE_AUTHOR("Marvell International Ltd."); | |
1253 | MODULE_DESCRIPTION("Marvell WiFi-Ex USB Driver version" USB_VERSION); | |
1254 | MODULE_VERSION(USB_VERSION); | |
1255 | MODULE_LICENSE("GPL v2"); | |
9e6f3f47 | 1256 | MODULE_FIRMWARE(USB8766_DEFAULT_FW_NAME); |
68458ded | 1257 | MODULE_FIRMWARE(USB8797_DEFAULT_FW_NAME); |
eaa3d9fa | 1258 | MODULE_FIRMWARE(USB8801_DEFAULT_FW_NAME); |
6d85ef00 | 1259 | MODULE_FIRMWARE(USB8997_DEFAULT_FW_NAME); |