1 /******************************************************************************
3 * Copyright(c) 2009-2012 Realtek Corporation. All rights reserved.
5 * This program is free software; you can redistribute it and/or modify it
6 * under the terms of version 2 of the GNU General Public License as
7 * published by the Free Software Foundation.
9 * This program is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
14 * You should have received a copy of the GNU General Public License along with
15 * this program; if not, write to the Free Software Foundation, Inc.,
16 * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
18 * The full GNU General Public License is included in this distribution in the
19 * file called LICENSE.
21 * Contact Information:
22 * wlanfae <wlanfae@realtek.com>
23 * Realtek Corporation, No. 2, Innovation Road II, Hsinchu Science Park,
24 * Hsinchu 300, Taiwan.
26 *****************************************************************************/
33 #include "rtl8192c/fw_common.h"
34 #include <linux/export.h>
36 #define REALTEK_USB_VENQT_READ 0xC0
37 #define REALTEK_USB_VENQT_WRITE 0x40
38 #define REALTEK_USB_VENQT_CMD_REQ 0x05
39 #define REALTEK_USB_VENQT_CMD_IDX 0x00
41 #define MAX_USBCTRL_VENDORREQ_TIMES 10
43 static void usbctrl_async_callback(struct urb
*urb
)
49 static int _usbctrl_vendorreq_async_write(struct usb_device
*udev
, u8 request
,
50 u16 value
, u16 index
, void *pdata
,
56 struct usb_ctrlrequest
*dr
;
58 struct rtl819x_async_write_data
{
59 u8 data
[REALTEK_USB_VENQT_MAX_BUF_SIZE
];
60 struct usb_ctrlrequest dr
;
63 pipe
= usb_sndctrlpipe(udev
, 0); /* write_out */
64 reqtype
= REALTEK_USB_VENQT_WRITE
;
66 buf
= kmalloc(sizeof(*buf
), GFP_ATOMIC
);
70 urb
= usb_alloc_urb(0, GFP_ATOMIC
);
78 dr
->bRequestType
= reqtype
;
79 dr
->bRequest
= request
;
80 dr
->wValue
= cpu_to_le16(value
);
81 dr
->wIndex
= cpu_to_le16(index
);
82 dr
->wLength
= cpu_to_le16(len
);
83 /* data are already in little-endian order */
84 memcpy(buf
, pdata
, len
);
85 usb_fill_control_urb(urb
, udev
, pipe
,
86 (unsigned char *)dr
, buf
, len
,
87 usbctrl_async_callback
, buf
);
88 rc
= usb_submit_urb(urb
, GFP_ATOMIC
);
95 static int _usbctrl_vendorreq_sync_read(struct usb_device
*udev
, u8 request
,
96 u16 value
, u16 index
, void *pdata
,
102 int vendorreq_times
= 0;
105 pipe
= usb_rcvctrlpipe(udev
, 0); /* read_in */
106 reqtype
= REALTEK_USB_VENQT_READ
;
109 status
= usb_control_msg(udev
, pipe
, request
, reqtype
, value
,
110 index
, pdata
, len
, 0); /*max. timeout*/
112 /* firmware download is checksumed, don't retry */
113 if ((value
>= FW_8192C_START_ADDRESS
&&
114 value
<= FW_8192C_END_ADDRESS
))
119 } while (++vendorreq_times
< MAX_USBCTRL_VENDORREQ_TIMES
);
121 if (status
< 0 && count
++ < 4)
122 pr_err("reg 0x%x, usbctrl_vendorreq TimeOut! status:0x%x value=0x%x\n",
123 value
, status
, *(u32
*)pdata
);
127 static u32
_usb_read_sync(struct rtl_priv
*rtlpriv
, u32 addr
, u16 len
)
129 struct device
*dev
= rtlpriv
->io
.dev
;
130 struct usb_device
*udev
= to_usb_device(dev
);
137 spin_lock_irqsave(&rtlpriv
->locks
.usb_lock
, flags
);
138 if (++rtlpriv
->usb_data_index
>= RTL_USB_MAX_RX_COUNT
)
139 rtlpriv
->usb_data_index
= 0;
140 data
= &rtlpriv
->usb_data
[rtlpriv
->usb_data_index
];
141 spin_unlock_irqrestore(&rtlpriv
->locks
.usb_lock
, flags
);
142 request
= REALTEK_USB_VENQT_CMD_REQ
;
143 index
= REALTEK_USB_VENQT_CMD_IDX
; /* n/a */
146 _usbctrl_vendorreq_sync_read(udev
, request
, wvalue
, index
, data
, len
);
147 return le32_to_cpu(*data
);
150 static u8
_usb_read8_sync(struct rtl_priv
*rtlpriv
, u32 addr
)
152 return (u8
)_usb_read_sync(rtlpriv
, addr
, 1);
155 static u16
_usb_read16_sync(struct rtl_priv
*rtlpriv
, u32 addr
)
157 return (u16
)_usb_read_sync(rtlpriv
, addr
, 2);
160 static u32
_usb_read32_sync(struct rtl_priv
*rtlpriv
, u32 addr
)
162 return _usb_read_sync(rtlpriv
, addr
, 4);
165 static void _usb_write_async(struct usb_device
*udev
, u32 addr
, u32 val
,
173 request
= REALTEK_USB_VENQT_CMD_REQ
;
174 index
= REALTEK_USB_VENQT_CMD_IDX
; /* n/a */
175 wvalue
= (u16
)(addr
&0x0000ffff);
176 data
= cpu_to_le32(val
);
177 _usbctrl_vendorreq_async_write(udev
, request
, wvalue
, index
, &data
,
181 static void _usb_write8_async(struct rtl_priv
*rtlpriv
, u32 addr
, u8 val
)
183 struct device
*dev
= rtlpriv
->io
.dev
;
185 _usb_write_async(to_usb_device(dev
), addr
, val
, 1);
188 static void _usb_write16_async(struct rtl_priv
*rtlpriv
, u32 addr
, u16 val
)
190 struct device
*dev
= rtlpriv
->io
.dev
;
192 _usb_write_async(to_usb_device(dev
), addr
, val
, 2);
195 static void _usb_write32_async(struct rtl_priv
*rtlpriv
, u32 addr
, u32 val
)
197 struct device
*dev
= rtlpriv
->io
.dev
;
199 _usb_write_async(to_usb_device(dev
), addr
, val
, 4);
202 static void _usb_writeN_sync(struct rtl_priv
*rtlpriv
, u32 addr
, void *data
,
205 struct device
*dev
= rtlpriv
->io
.dev
;
206 struct usb_device
*udev
= to_usb_device(dev
);
207 u8 request
= REALTEK_USB_VENQT_CMD_REQ
;
208 u8 reqtype
= REALTEK_USB_VENQT_WRITE
;
210 u16 index
= REALTEK_USB_VENQT_CMD_IDX
;
211 int pipe
= usb_sndctrlpipe(udev
, 0); /* write_out */
214 wvalue
= (u16
)(addr
& 0x0000ffff);
215 buffer
= kmalloc(len
, GFP_ATOMIC
);
218 memcpy(buffer
, data
, len
);
219 usb_control_msg(udev
, pipe
, request
, reqtype
, wvalue
,
220 index
, buffer
, len
, 50);
225 static void _rtl_usb_io_handler_init(struct device
*dev
,
226 struct ieee80211_hw
*hw
)
228 struct rtl_priv
*rtlpriv
= rtl_priv(hw
);
230 rtlpriv
->io
.dev
= dev
;
231 mutex_init(&rtlpriv
->io
.bb_mutex
);
232 rtlpriv
->io
.write8_async
= _usb_write8_async
;
233 rtlpriv
->io
.write16_async
= _usb_write16_async
;
234 rtlpriv
->io
.write32_async
= _usb_write32_async
;
235 rtlpriv
->io
.read8_sync
= _usb_read8_sync
;
236 rtlpriv
->io
.read16_sync
= _usb_read16_sync
;
237 rtlpriv
->io
.read32_sync
= _usb_read32_sync
;
238 rtlpriv
->io
.writeN_sync
= _usb_writeN_sync
;
241 static void _rtl_usb_io_handler_release(struct ieee80211_hw
*hw
)
243 struct rtl_priv __maybe_unused
*rtlpriv
= rtl_priv(hw
);
245 mutex_destroy(&rtlpriv
->io
.bb_mutex
);
250 * Default aggregation handler. Do nothing and just return the oldest skb.
252 static struct sk_buff
*_none_usb_tx_aggregate_hdl(struct ieee80211_hw
*hw
,
253 struct sk_buff_head
*list
)
255 return skb_dequeue(list
);
258 #define IS_HIGH_SPEED_USB(udev) \
259 ((USB_SPEED_HIGH == (udev)->speed) ? true : false)
261 static int _rtl_usb_init_tx(struct ieee80211_hw
*hw
)
264 struct rtl_priv
*rtlpriv
= rtl_priv(hw
);
265 struct rtl_usb
*rtlusb
= rtl_usbdev(rtl_usbpriv(hw
));
267 rtlusb
->max_bulk_out_size
= IS_HIGH_SPEED_USB(rtlusb
->udev
)
268 ? USB_HIGH_SPEED_BULK_SIZE
269 : USB_FULL_SPEED_BULK_SIZE
;
271 RT_TRACE(rtlpriv
, COMP_INIT
, DBG_DMESG
, "USB Max Bulk-out Size=%d\n",
272 rtlusb
->max_bulk_out_size
);
274 for (i
= 0; i
< __RTL_TXQ_NUM
; i
++) {
275 u32 ep_num
= rtlusb
->ep_map
.ep_mapping
[i
];
277 RT_TRACE(rtlpriv
, COMP_INIT
, DBG_DMESG
,
278 "Invalid endpoint map setting!\n");
283 rtlusb
->usb_tx_post_hdl
=
284 rtlpriv
->cfg
->usb_interface_cfg
->usb_tx_post_hdl
;
285 rtlusb
->usb_tx_cleanup
=
286 rtlpriv
->cfg
->usb_interface_cfg
->usb_tx_cleanup
;
287 rtlusb
->usb_tx_aggregate_hdl
=
288 (rtlpriv
->cfg
->usb_interface_cfg
->usb_tx_aggregate_hdl
)
289 ? rtlpriv
->cfg
->usb_interface_cfg
->usb_tx_aggregate_hdl
290 : &_none_usb_tx_aggregate_hdl
;
292 init_usb_anchor(&rtlusb
->tx_submitted
);
293 for (i
= 0; i
< RTL_USB_MAX_EP_NUM
; i
++) {
294 skb_queue_head_init(&rtlusb
->tx_skb_queue
[i
]);
295 init_usb_anchor(&rtlusb
->tx_pending
[i
]);
300 static int _rtl_usb_init_rx(struct ieee80211_hw
*hw
)
302 struct rtl_priv
*rtlpriv
= rtl_priv(hw
);
303 struct rtl_usb_priv
*usb_priv
= rtl_usbpriv(hw
);
304 struct rtl_usb
*rtlusb
= rtl_usbdev(usb_priv
);
306 rtlusb
->rx_max_size
= rtlpriv
->cfg
->usb_interface_cfg
->rx_max_size
;
307 rtlusb
->rx_urb_num
= rtlpriv
->cfg
->usb_interface_cfg
->rx_urb_num
;
308 rtlusb
->in_ep
= rtlpriv
->cfg
->usb_interface_cfg
->in_ep_num
;
309 rtlusb
->usb_rx_hdl
= rtlpriv
->cfg
->usb_interface_cfg
->usb_rx_hdl
;
310 rtlusb
->usb_rx_segregate_hdl
=
311 rtlpriv
->cfg
->usb_interface_cfg
->usb_rx_segregate_hdl
;
313 pr_info("rx_max_size %d, rx_urb_num %d, in_ep %d\n",
314 rtlusb
->rx_max_size
, rtlusb
->rx_urb_num
, rtlusb
->in_ep
);
315 init_usb_anchor(&rtlusb
->rx_submitted
);
319 static int _rtl_usb_init(struct ieee80211_hw
*hw
)
321 struct rtl_priv
*rtlpriv
= rtl_priv(hw
);
322 struct rtl_usb_priv
*usb_priv
= rtl_usbpriv(hw
);
323 struct rtl_usb
*rtlusb
= rtl_usbdev(usb_priv
);
326 struct usb_interface
*usb_intf
= rtlusb
->intf
;
327 u8 epnums
= usb_intf
->cur_altsetting
->desc
.bNumEndpoints
;
329 rtlusb
->out_ep_nums
= rtlusb
->in_ep_nums
= 0;
330 for (epidx
= 0; epidx
< epnums
; epidx
++) {
331 struct usb_endpoint_descriptor
*pep_desc
;
332 pep_desc
= &usb_intf
->cur_altsetting
->endpoint
[epidx
].desc
;
334 if (usb_endpoint_dir_in(pep_desc
))
335 rtlusb
->in_ep_nums
++;
336 else if (usb_endpoint_dir_out(pep_desc
))
337 rtlusb
->out_ep_nums
++;
339 RT_TRACE(rtlpriv
, COMP_INIT
, DBG_DMESG
,
340 "USB EP(0x%02x), MaxPacketSize=%d, Interval=%d\n",
341 pep_desc
->bEndpointAddress
, pep_desc
->wMaxPacketSize
,
342 pep_desc
->bInterval
);
344 if (rtlusb
->in_ep_nums
< rtlpriv
->cfg
->usb_interface_cfg
->in_ep_num
) {
345 pr_err("Too few input end points found\n");
348 if (rtlusb
->out_ep_nums
== 0) {
349 pr_err("No output end points found\n");
352 /* usb endpoint mapping */
353 err
= rtlpriv
->cfg
->usb_interface_cfg
->usb_endpoint_mapping(hw
);
354 rtlusb
->usb_mq_to_hwq
= rtlpriv
->cfg
->usb_interface_cfg
->usb_mq_to_hwq
;
355 _rtl_usb_init_tx(hw
);
356 _rtl_usb_init_rx(hw
);
360 static void rtl_usb_init_sw(struct ieee80211_hw
*hw
)
362 struct rtl_mac
*mac
= rtl_mac(rtl_priv(hw
));
363 struct rtl_hal
*rtlhal
= rtl_hal(rtl_priv(hw
));
364 struct rtl_ps_ctl
*ppsc
= rtl_psc(rtl_priv(hw
));
365 struct rtl_usb
*rtlusb
= rtl_usbdev(rtl_usbpriv(hw
));
368 ppsc
->inactiveps
= false;
369 ppsc
->leisure_ps
= false;
370 ppsc
->fwctrl_lps
= false;
371 ppsc
->reg_fwctrl_lps
= 3;
372 ppsc
->reg_max_lps_awakeintvl
= 5;
373 ppsc
->fwctrl_psmode
= FW_PS_DTIM_MODE
;
376 mac
->beacon_interval
= 100;
379 mac
->min_space_cfg
= 0;
380 mac
->max_mss_density
= 0;
382 /* set sane AMPDU defaults */
383 mac
->current_ampdu_density
= 7;
384 mac
->current_ampdu_factor
= 3;
387 rtlusb
->acm_method
= eAcmWay2_SW
;
390 /* HIMR - turn all on */
391 rtlusb
->irq_mask
[0] = 0xFFFFFFFF;
392 /* HIMR_EX - turn all on */
393 rtlusb
->irq_mask
[1] = 0xFFFFFFFF;
394 rtlusb
->disableHWSM
= true;
397 #define __RADIO_TAP_SIZE_RSV 32
399 static void _rtl_rx_completed(struct urb
*urb
);
401 static struct sk_buff
*_rtl_prep_rx_urb(struct ieee80211_hw
*hw
,
402 struct rtl_usb
*rtlusb
,
407 struct rtl_priv
*rtlpriv
= rtl_priv(hw
);
409 skb
= __dev_alloc_skb((rtlusb
->rx_max_size
+ __RADIO_TAP_SIZE_RSV
),
412 RT_TRACE(rtlpriv
, COMP_USB
, DBG_EMERG
,
413 "Failed to __dev_alloc_skb!!\n");
414 return ERR_PTR(-ENOMEM
);
417 /* reserve some space for mac80211's radiotap */
418 skb_reserve(skb
, __RADIO_TAP_SIZE_RSV
);
419 usb_fill_bulk_urb(urb
, rtlusb
->udev
,
420 usb_rcvbulkpipe(rtlusb
->udev
, rtlusb
->in_ep
),
421 skb
->data
, min(skb_tailroom(skb
),
422 (int)rtlusb
->rx_max_size
),
423 _rtl_rx_completed
, skb
);
425 _rtl_install_trx_info(rtlusb
, skb
, rtlusb
->in_ep
);
429 #undef __RADIO_TAP_SIZE_RSV
431 static void _rtl_usb_rx_process_agg(struct ieee80211_hw
*hw
,
434 struct rtl_priv
*rtlpriv
= rtl_priv(hw
);
435 u8
*rxdesc
= skb
->data
;
436 struct ieee80211_hdr
*hdr
;
437 bool unicast
= false;
439 struct ieee80211_rx_status rx_status
= {0};
440 struct rtl_stats stats
= {
446 skb_pull(skb
, RTL_RX_DESC_SIZE
);
447 rtlpriv
->cfg
->ops
->query_rx_desc(hw
, &stats
, &rx_status
, rxdesc
, skb
);
448 skb_pull(skb
, (stats
.rx_drvinfo_size
+ stats
.rx_bufshift
));
449 hdr
= (struct ieee80211_hdr
*)(skb
->data
);
450 fc
= hdr
->frame_control
;
452 memcpy(IEEE80211_SKB_RXCB(skb
), &rx_status
, sizeof(rx_status
));
454 if (is_broadcast_ether_addr(hdr
->addr1
)) {
456 } else if (is_multicast_ether_addr(hdr
->addr1
)) {
460 rtlpriv
->stats
.rxbytesunicast
+= skb
->len
;
463 rtl_is_special_data(hw
, skb
, false);
465 if (ieee80211_is_data(fc
)) {
466 rtlpriv
->cfg
->ops
->led_control(hw
, LED_CTL_RX
);
469 rtlpriv
->link_info
.num_rx_inperiod
++;
474 static void _rtl_usb_rx_process_noagg(struct ieee80211_hw
*hw
,
477 struct rtl_priv
*rtlpriv
= rtl_priv(hw
);
478 u8
*rxdesc
= skb
->data
;
479 struct ieee80211_hdr
*hdr
;
480 bool unicast
= false;
482 struct ieee80211_rx_status rx_status
= {0};
483 struct rtl_stats stats
= {
489 skb_pull(skb
, RTL_RX_DESC_SIZE
);
490 rtlpriv
->cfg
->ops
->query_rx_desc(hw
, &stats
, &rx_status
, rxdesc
, skb
);
491 skb_pull(skb
, (stats
.rx_drvinfo_size
+ stats
.rx_bufshift
));
492 hdr
= (struct ieee80211_hdr
*)(skb
->data
);
493 fc
= hdr
->frame_control
;
495 memcpy(IEEE80211_SKB_RXCB(skb
), &rx_status
, sizeof(rx_status
));
497 if (is_broadcast_ether_addr(hdr
->addr1
)) {
499 } else if (is_multicast_ether_addr(hdr
->addr1
)) {
503 rtlpriv
->stats
.rxbytesunicast
+= skb
->len
;
506 rtl_is_special_data(hw
, skb
, false);
508 if (ieee80211_is_data(fc
)) {
509 rtlpriv
->cfg
->ops
->led_control(hw
, LED_CTL_RX
);
512 rtlpriv
->link_info
.num_rx_inperiod
++;
514 if (likely(rtl_action_proc(hw
, skb
, false))) {
515 struct sk_buff
*uskb
= NULL
;
518 uskb
= dev_alloc_skb(skb
->len
+ 128);
519 if (uskb
) { /* drop packet on allocation failure */
520 memcpy(IEEE80211_SKB_RXCB(uskb
), &rx_status
,
522 pdata
= (u8
*)skb_put(uskb
, skb
->len
);
523 memcpy(pdata
, skb
->data
, skb
->len
);
524 ieee80211_rx_irqsafe(hw
, uskb
);
526 dev_kfree_skb_any(skb
);
528 dev_kfree_skb_any(skb
);
533 static void _rtl_rx_pre_process(struct ieee80211_hw
*hw
, struct sk_buff
*skb
)
535 struct sk_buff
*_skb
;
536 struct sk_buff_head rx_queue
;
537 struct rtl_usb
*rtlusb
= rtl_usbdev(rtl_usbpriv(hw
));
539 skb_queue_head_init(&rx_queue
);
540 if (rtlusb
->usb_rx_segregate_hdl
)
541 rtlusb
->usb_rx_segregate_hdl(hw
, skb
, &rx_queue
);
542 WARN_ON(skb_queue_empty(&rx_queue
));
543 while (!skb_queue_empty(&rx_queue
)) {
544 _skb
= skb_dequeue(&rx_queue
);
545 _rtl_usb_rx_process_agg(hw
, skb
);
546 ieee80211_rx_irqsafe(hw
, skb
);
550 static void _rtl_rx_completed(struct urb
*_urb
)
552 struct sk_buff
*skb
= (struct sk_buff
*)_urb
->context
;
553 struct ieee80211_tx_info
*info
= IEEE80211_SKB_CB(skb
);
554 struct rtl_usb
*rtlusb
= (struct rtl_usb
*)info
->rate_driver_data
[0];
555 struct ieee80211_hw
*hw
= usb_get_intfdata(rtlusb
->intf
);
556 struct rtl_priv
*rtlpriv
= rtl_priv(hw
);
559 if (unlikely(IS_USB_STOP(rtlusb
)))
562 if (likely(0 == _urb
->status
)) {
563 /* If this code were moved to work queue, would CPU
564 * utilization be improved? NOTE: We shall allocate another skb
565 * and reuse the original one.
567 skb_put(skb
, _urb
->actual_length
);
569 if (likely(!rtlusb
->usb_rx_segregate_hdl
)) {
570 struct sk_buff
*_skb
;
571 _rtl_usb_rx_process_noagg(hw
, skb
);
572 _skb
= _rtl_prep_rx_urb(hw
, rtlusb
, _urb
, GFP_ATOMIC
);
575 RT_TRACE(rtlpriv
, COMP_USB
, DBG_EMERG
,
576 "Can't allocate skb for bulk IN!\n");
582 _rtl_rx_pre_process(hw
, skb
);
583 pr_err("rx agg not supported\n");
588 switch (_urb
->status
) {
600 skb_reset_tail_pointer(skb
);
603 usb_anchor_urb(_urb
, &rtlusb
->rx_submitted
);
604 err
= usb_submit_urb(_urb
, GFP_ATOMIC
);
606 usb_unanchor_urb(_urb
);
612 dev_kfree_skb_irq(skb
);
615 static int _rtl_usb_receive(struct ieee80211_hw
*hw
)
621 struct rtl_priv
*rtlpriv
= rtl_priv(hw
);
622 struct rtl_usb
*rtlusb
= rtl_usbdev(rtl_usbpriv(hw
));
624 WARN_ON(0 == rtlusb
->rx_urb_num
);
625 /* 1600 == 1514 + max WLAN header + rtk info */
626 WARN_ON(rtlusb
->rx_max_size
< 1600);
628 for (i
= 0; i
< rtlusb
->rx_urb_num
; i
++) {
630 urb
= usb_alloc_urb(0, GFP_KERNEL
);
632 RT_TRACE(rtlpriv
, COMP_USB
, DBG_EMERG
,
633 "Failed to alloc URB!!\n");
637 skb
= _rtl_prep_rx_urb(hw
, rtlusb
, urb
, GFP_KERNEL
);
639 RT_TRACE(rtlpriv
, COMP_USB
, DBG_EMERG
,
640 "Failed to prep_rx_urb!!\n");
646 usb_anchor_urb(urb
, &rtlusb
->rx_submitted
);
647 err
= usb_submit_urb(urb
, GFP_KERNEL
);
655 usb_kill_anchored_urbs(&rtlusb
->rx_submitted
);
659 static int rtl_usb_start(struct ieee80211_hw
*hw
)
662 struct rtl_priv
*rtlpriv
= rtl_priv(hw
);
663 struct rtl_hal
*rtlhal
= rtl_hal(rtl_priv(hw
));
664 struct rtl_usb
*rtlusb
= rtl_usbdev(rtl_usbpriv(hw
));
666 err
= rtlpriv
->cfg
->ops
->hw_init(hw
);
668 rtl_init_rx_config(hw
);
670 /* Enable software */
671 SET_USB_START(rtlusb
);
672 /* should after adapter start and interrupt enable. */
673 set_hal_start(rtlhal
);
676 err
= _rtl_usb_receive(hw
);
686 /*======================= tx =========================================*/
687 static void rtl_usb_cleanup(struct ieee80211_hw
*hw
)
690 struct sk_buff
*_skb
;
691 struct rtl_usb
*rtlusb
= rtl_usbdev(rtl_usbpriv(hw
));
692 struct ieee80211_tx_info
*txinfo
;
694 SET_USB_STOP(rtlusb
);
696 /* clean up rx stuff. */
697 usb_kill_anchored_urbs(&rtlusb
->rx_submitted
);
699 /* clean up tx stuff */
700 for (i
= 0; i
< RTL_USB_MAX_EP_NUM
; i
++) {
701 while ((_skb
= skb_dequeue(&rtlusb
->tx_skb_queue
[i
]))) {
702 rtlusb
->usb_tx_cleanup(hw
, _skb
);
703 txinfo
= IEEE80211_SKB_CB(_skb
);
704 ieee80211_tx_info_clear_status(txinfo
);
705 txinfo
->flags
|= IEEE80211_TX_STAT_ACK
;
706 ieee80211_tx_status_irqsafe(hw
, _skb
);
708 usb_kill_anchored_urbs(&rtlusb
->tx_pending
[i
]);
710 usb_kill_anchored_urbs(&rtlusb
->tx_submitted
);
715 * We may add some struct into struct rtl_usb later. Do deinit here.
718 static void rtl_usb_deinit(struct ieee80211_hw
*hw
)
723 static void rtl_usb_stop(struct ieee80211_hw
*hw
)
725 struct rtl_priv
*rtlpriv
= rtl_priv(hw
);
726 struct rtl_hal
*rtlhal
= rtl_hal(rtl_priv(hw
));
727 struct rtl_usb
*rtlusb
= rtl_usbdev(rtl_usbpriv(hw
));
729 /* should after adapter start and interrupt enable. */
730 set_hal_stop(rtlhal
);
731 /* Enable software */
732 SET_USB_STOP(rtlusb
);
734 rtlpriv
->cfg
->ops
->hw_disable(hw
);
737 static void _rtl_submit_tx_urb(struct ieee80211_hw
*hw
, struct urb
*_urb
)
740 struct rtl_priv
*rtlpriv
= rtl_priv(hw
);
741 struct rtl_usb
*rtlusb
= rtl_usbdev(rtl_usbpriv(hw
));
743 usb_anchor_urb(_urb
, &rtlusb
->tx_submitted
);
744 err
= usb_submit_urb(_urb
, GFP_ATOMIC
);
748 RT_TRACE(rtlpriv
, COMP_USB
, DBG_EMERG
,
749 "Failed to submit urb\n");
750 usb_unanchor_urb(_urb
);
751 skb
= (struct sk_buff
*)_urb
->context
;
757 static int _usb_tx_post(struct ieee80211_hw
*hw
, struct urb
*urb
,
760 struct rtl_priv
*rtlpriv
= rtl_priv(hw
);
761 struct rtl_usb
*rtlusb
= rtl_usbdev(rtl_usbpriv(hw
));
762 struct ieee80211_tx_info
*txinfo
;
764 rtlusb
->usb_tx_post_hdl(hw
, urb
, skb
);
765 skb_pull(skb
, RTL_TX_HEADER_SIZE
);
766 txinfo
= IEEE80211_SKB_CB(skb
);
767 ieee80211_tx_info_clear_status(txinfo
);
768 txinfo
->flags
|= IEEE80211_TX_STAT_ACK
;
771 RT_TRACE(rtlpriv
, COMP_USB
, DBG_EMERG
,
772 "Urb has error status 0x%X\n", urb
->status
);
775 /* TODO: statistics */
777 ieee80211_tx_status_irqsafe(hw
, skb
);
781 static void _rtl_tx_complete(struct urb
*urb
)
783 struct sk_buff
*skb
= (struct sk_buff
*)urb
->context
;
784 struct ieee80211_tx_info
*info
= IEEE80211_SKB_CB(skb
);
785 struct rtl_usb
*rtlusb
= (struct rtl_usb
*)info
->rate_driver_data
[0];
786 struct ieee80211_hw
*hw
= usb_get_intfdata(rtlusb
->intf
);
789 if (unlikely(IS_USB_STOP(rtlusb
)))
791 err
= _usb_tx_post(hw
, urb
, skb
);
793 /* Ignore error and keep issuiing other urbs */
798 static struct urb
*_rtl_usb_tx_urb_setup(struct ieee80211_hw
*hw
,
799 struct sk_buff
*skb
, u32 ep_num
)
801 struct rtl_priv
*rtlpriv
= rtl_priv(hw
);
802 struct rtl_usb
*rtlusb
= rtl_usbdev(rtl_usbpriv(hw
));
805 WARN_ON(NULL
== skb
);
806 _urb
= usb_alloc_urb(0, GFP_ATOMIC
);
808 RT_TRACE(rtlpriv
, COMP_USB
, DBG_EMERG
,
809 "Can't allocate URB for bulk out!\n");
813 _rtl_install_trx_info(rtlusb
, skb
, ep_num
);
814 usb_fill_bulk_urb(_urb
, rtlusb
->udev
, usb_sndbulkpipe(rtlusb
->udev
,
815 ep_num
), skb
->data
, skb
->len
, _rtl_tx_complete
, skb
);
816 _urb
->transfer_flags
|= URB_ZERO_PACKET
;
820 static void _rtl_usb_transmit(struct ieee80211_hw
*hw
, struct sk_buff
*skb
,
823 struct rtl_priv
*rtlpriv
= rtl_priv(hw
);
824 struct rtl_usb
*rtlusb
= rtl_usbdev(rtl_usbpriv(hw
));
826 struct urb
*_urb
= NULL
;
827 struct sk_buff
*_skb
= NULL
;
828 struct sk_buff_head
*skb_list
;
829 struct usb_anchor
*urb_list
;
831 WARN_ON(NULL
== rtlusb
->usb_tx_aggregate_hdl
);
832 if (unlikely(IS_USB_STOP(rtlusb
))) {
833 RT_TRACE(rtlpriv
, COMP_USB
, DBG_EMERG
,
834 "USB device is stopping...\n");
838 ep_num
= rtlusb
->ep_map
.ep_mapping
[qnum
];
839 skb_list
= &rtlusb
->tx_skb_queue
[ep_num
];
841 _urb
= _rtl_usb_tx_urb_setup(hw
, _skb
, ep_num
);
842 if (unlikely(!_urb
)) {
843 RT_TRACE(rtlpriv
, COMP_ERR
, DBG_EMERG
,
844 "Can't allocate urb. Drop skb!\n");
847 urb_list
= &rtlusb
->tx_pending
[ep_num
];
848 _rtl_submit_tx_urb(hw
, _urb
);
851 static void _rtl_usb_tx_preprocess(struct ieee80211_hw
*hw
,
852 struct ieee80211_sta
*sta
,
856 struct rtl_priv
*rtlpriv
= rtl_priv(hw
);
857 struct rtl_mac
*mac
= rtl_mac(rtl_priv(hw
));
858 struct ieee80211_tx_info
*info
= IEEE80211_SKB_CB(skb
);
859 struct rtl_tx_desc
*pdesc
= NULL
;
860 struct rtl_tcb_desc tcb_desc
;
861 struct ieee80211_hdr
*hdr
= (struct ieee80211_hdr
*)(skb
->data
);
862 __le16 fc
= hdr
->frame_control
;
863 u8
*pda_addr
= hdr
->addr1
;
869 memset(&tcb_desc
, 0, sizeof(struct rtl_tcb_desc
));
870 if (ieee80211_is_auth(fc
)) {
871 RT_TRACE(rtlpriv
, COMP_SEND
, DBG_DMESG
, "MAC80211_LINKING\n");
875 if (rtlpriv
->psc
.sw_ps_enabled
) {
876 if (ieee80211_is_data(fc
) && !ieee80211_is_nullfunc(fc
) &&
877 !ieee80211_has_pm(fc
))
878 hdr
->frame_control
|= cpu_to_le16(IEEE80211_FCTL_PM
);
881 rtl_action_proc(hw
, skb
, true);
882 if (is_multicast_ether_addr(pda_addr
))
883 rtlpriv
->stats
.txbytesmulticast
+= skb
->len
;
884 else if (is_broadcast_ether_addr(pda_addr
))
885 rtlpriv
->stats
.txbytesbroadcast
+= skb
->len
;
887 rtlpriv
->stats
.txbytesunicast
+= skb
->len
;
888 if (ieee80211_is_data_qos(fc
)) {
889 qc
= ieee80211_get_qos_ctl(hdr
);
890 tid
= qc
[0] & IEEE80211_QOS_CTL_TID_MASK
;
891 seq_number
= (le16_to_cpu(hdr
->seq_ctrl
) &
892 IEEE80211_SCTL_SEQ
) >> 4;
896 rtlpriv
->cfg
->ops
->fill_tx_desc(hw
, hdr
, (u8
*)pdesc
, info
, sta
, skb
,
897 hw_queue
, &tcb_desc
);
898 if (!ieee80211_has_morefrags(hdr
->frame_control
)) {
900 mac
->tids
[tid
].seq_number
= seq_number
;
902 if (ieee80211_is_data(fc
))
903 rtlpriv
->cfg
->ops
->led_control(hw
, LED_CTL_TX
);
906 static int rtl_usb_tx(struct ieee80211_hw
*hw
,
907 struct ieee80211_sta
*sta
,
909 struct rtl_tcb_desc
*dummy
)
911 struct rtl_usb
*rtlusb
= rtl_usbdev(rtl_usbpriv(hw
));
912 struct rtl_hal
*rtlhal
= rtl_hal(rtl_priv(hw
));
913 struct ieee80211_hdr
*hdr
= (struct ieee80211_hdr
*)(skb
->data
);
914 __le16 fc
= hdr
->frame_control
;
917 if (unlikely(is_hal_stop(rtlhal
)))
919 hw_queue
= rtlusb
->usb_mq_to_hwq(fc
, skb_get_queue_mapping(skb
));
920 _rtl_usb_tx_preprocess(hw
, sta
, skb
, hw_queue
);
921 _rtl_usb_transmit(hw
, skb
, hw_queue
);
925 dev_kfree_skb_any(skb
);
929 static bool rtl_usb_tx_chk_waitq_insert(struct ieee80211_hw
*hw
,
930 struct ieee80211_sta
*sta
,
936 static struct rtl_intf_ops rtl_usb_ops
= {
937 .adapter_start
= rtl_usb_start
,
938 .adapter_stop
= rtl_usb_stop
,
939 .adapter_tx
= rtl_usb_tx
,
940 .waitq_insert
= rtl_usb_tx_chk_waitq_insert
,
943 int rtl_usb_probe(struct usb_interface
*intf
,
944 const struct usb_device_id
*id
)
947 struct ieee80211_hw
*hw
= NULL
;
948 struct rtl_priv
*rtlpriv
= NULL
;
949 struct usb_device
*udev
;
950 struct rtl_usb_priv
*usb_priv
;
952 hw
= ieee80211_alloc_hw(sizeof(struct rtl_priv
) +
953 sizeof(struct rtl_usb_priv
), &rtl_ops
);
955 RT_ASSERT(false, "ieee80211 alloc failed\n");
959 rtlpriv
->usb_data
= kzalloc(RTL_USB_MAX_RX_COUNT
* sizeof(u32
),
961 if (!rtlpriv
->usb_data
)
964 /* this spin lock must be initialized early */
965 spin_lock_init(&rtlpriv
->locks
.usb_lock
);
967 rtlpriv
->usb_data_index
= 0;
968 init_completion(&rtlpriv
->firmware_loading_complete
);
969 SET_IEEE80211_DEV(hw
, &intf
->dev
);
970 udev
= interface_to_usbdev(intf
);
972 usb_priv
= rtl_usbpriv(hw
);
973 memset(usb_priv
, 0, sizeof(*usb_priv
));
974 usb_priv
->dev
.intf
= intf
;
975 usb_priv
->dev
.udev
= udev
;
976 usb_set_intfdata(intf
, hw
);
977 /* init cfg & intf_ops */
978 rtlpriv
->rtlhal
.interface
= INTF_USB
;
979 rtlpriv
->cfg
= (struct rtl_hal_cfg
*)(id
->driver_info
);
980 rtlpriv
->intf_ops
= &rtl_usb_ops
;
981 rtl_dbgp_flag_init(hw
);
982 /* Init IO handler */
983 _rtl_usb_io_handler_init(&udev
->dev
, hw
);
984 rtlpriv
->cfg
->ops
->read_chip_version(hw
);
985 /*like read eeprom and so on */
986 rtlpriv
->cfg
->ops
->read_eeprom_info(hw
);
987 err
= _rtl_usb_init(hw
);
991 /* Init mac80211 sw */
992 err
= rtl_init_core(hw
);
994 RT_TRACE(rtlpriv
, COMP_ERR
, DBG_EMERG
,
995 "Can't allocate sw for mac80211\n");
998 if (rtlpriv
->cfg
->ops
->init_sw_vars(hw
)) {
999 RT_TRACE(rtlpriv
, COMP_ERR
, DBG_EMERG
, "Can't init_sw_vars\n");
1002 rtlpriv
->cfg
->ops
->init_sw_leds(hw
);
1006 rtl_deinit_core(hw
);
1007 _rtl_usb_io_handler_release(hw
);
1009 complete(&rtlpriv
->firmware_loading_complete
);
1012 EXPORT_SYMBOL(rtl_usb_probe
);
1014 void rtl_usb_disconnect(struct usb_interface
*intf
)
1016 struct ieee80211_hw
*hw
= usb_get_intfdata(intf
);
1017 struct rtl_priv
*rtlpriv
= rtl_priv(hw
);
1018 struct rtl_mac
*rtlmac
= rtl_mac(rtl_priv(hw
));
1019 struct rtl_usb
*rtlusb
= rtl_usbdev(rtl_usbpriv(hw
));
1021 if (unlikely(!rtlpriv
))
1024 /* just in case driver is removed before firmware callback */
1025 wait_for_completion(&rtlpriv
->firmware_loading_complete
);
1026 /*ieee80211_unregister_hw will call ops_stop */
1027 if (rtlmac
->mac80211_registered
== 1) {
1028 ieee80211_unregister_hw(hw
);
1029 rtlmac
->mac80211_registered
= 0;
1031 rtl_deinit_deferred_work(hw
);
1032 rtlpriv
->intf_ops
->adapter_stop(hw
);
1035 /* rtl_deinit_rfkill(hw); */
1037 rtl_deinit_core(hw
);
1038 kfree(rtlpriv
->usb_data
);
1039 rtlpriv
->cfg
->ops
->deinit_sw_leds(hw
);
1040 rtlpriv
->cfg
->ops
->deinit_sw_vars(hw
);
1041 _rtl_usb_io_handler_release(hw
);
1042 usb_put_dev(rtlusb
->udev
);
1043 usb_set_intfdata(intf
, NULL
);
1044 ieee80211_free_hw(hw
);
1046 EXPORT_SYMBOL(rtl_usb_disconnect
);
1048 int rtl_usb_suspend(struct usb_interface
*pusb_intf
, pm_message_t message
)
1052 EXPORT_SYMBOL(rtl_usb_suspend
);
1054 int rtl_usb_resume(struct usb_interface
*pusb_intf
)
1058 EXPORT_SYMBOL(rtl_usb_resume
);