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
)
47 kfree(urb
->setup_packet
);
49 kfree(urb
->transfer_buffer
);
53 static int _usbctrl_vendorreq_async_write(struct usb_device
*udev
, u8 request
,
54 u16 value
, u16 index
, void *pdata
,
60 struct usb_ctrlrequest
*dr
;
62 const u16 databuf_maxlen
= REALTEK_USB_VENQT_MAX_BUF_SIZE
;
65 if (WARN_ON_ONCE(len
> databuf_maxlen
))
68 pipe
= usb_sndctrlpipe(udev
, 0); /* write_out */
69 reqtype
= REALTEK_USB_VENQT_WRITE
;
71 dr
= kmalloc(sizeof(*dr
), GFP_ATOMIC
);
75 databuf
= kmalloc(databuf_maxlen
, GFP_ATOMIC
);
81 urb
= usb_alloc_urb(0, GFP_ATOMIC
);
88 dr
->bRequestType
= reqtype
;
89 dr
->bRequest
= request
;
90 dr
->wValue
= cpu_to_le16(value
);
91 dr
->wIndex
= cpu_to_le16(index
);
92 dr
->wLength
= cpu_to_le16(len
);
93 /* data are already in little-endian order */
94 memcpy(databuf
, pdata
, len
);
95 usb_fill_control_urb(urb
, udev
, pipe
,
96 (unsigned char *)dr
, databuf
, len
,
97 usbctrl_async_callback
, NULL
);
98 rc
= usb_submit_urb(urb
, GFP_ATOMIC
);
107 static int _usbctrl_vendorreq_sync_read(struct usb_device
*udev
, u8 request
,
108 u16 value
, u16 index
, void *pdata
,
114 int vendorreq_times
= 0;
117 pipe
= usb_rcvctrlpipe(udev
, 0); /* read_in */
118 reqtype
= REALTEK_USB_VENQT_READ
;
121 status
= usb_control_msg(udev
, pipe
, request
, reqtype
, value
,
122 index
, pdata
, len
, 0); /*max. timeout*/
124 /* firmware download is checksumed, don't retry */
125 if ((value
>= FW_8192C_START_ADDRESS
&&
126 value
<= FW_8192C_END_ADDRESS
))
131 } while (++vendorreq_times
< MAX_USBCTRL_VENDORREQ_TIMES
);
133 if (status
< 0 && count
++ < 4)
134 pr_err("reg 0x%x, usbctrl_vendorreq TimeOut! status:0x%x value=0x%x\n",
135 value
, status
, *(u32
*)pdata
);
139 static u32
_usb_read_sync(struct rtl_priv
*rtlpriv
, u32 addr
, u16 len
)
141 struct device
*dev
= rtlpriv
->io
.dev
;
142 struct usb_device
*udev
= to_usb_device(dev
);
149 spin_lock_irqsave(&rtlpriv
->locks
.usb_lock
, flags
);
150 if (++rtlpriv
->usb_data_index
>= RTL_USB_MAX_RX_COUNT
)
151 rtlpriv
->usb_data_index
= 0;
152 data
= &rtlpriv
->usb_data
[rtlpriv
->usb_data_index
];
153 spin_unlock_irqrestore(&rtlpriv
->locks
.usb_lock
, flags
);
154 request
= REALTEK_USB_VENQT_CMD_REQ
;
155 index
= REALTEK_USB_VENQT_CMD_IDX
; /* n/a */
158 _usbctrl_vendorreq_sync_read(udev
, request
, wvalue
, index
, data
, len
);
159 return le32_to_cpu(*data
);
162 static u8
_usb_read8_sync(struct rtl_priv
*rtlpriv
, u32 addr
)
164 return (u8
)_usb_read_sync(rtlpriv
, addr
, 1);
167 static u16
_usb_read16_sync(struct rtl_priv
*rtlpriv
, u32 addr
)
169 return (u16
)_usb_read_sync(rtlpriv
, addr
, 2);
172 static u32
_usb_read32_sync(struct rtl_priv
*rtlpriv
, u32 addr
)
174 return _usb_read_sync(rtlpriv
, addr
, 4);
177 static void _usb_write_async(struct usb_device
*udev
, u32 addr
, u32 val
,
185 request
= REALTEK_USB_VENQT_CMD_REQ
;
186 index
= REALTEK_USB_VENQT_CMD_IDX
; /* n/a */
187 wvalue
= (u16
)(addr
&0x0000ffff);
188 data
= cpu_to_le32(val
);
189 _usbctrl_vendorreq_async_write(udev
, request
, wvalue
, index
, &data
,
193 static void _usb_write8_async(struct rtl_priv
*rtlpriv
, u32 addr
, u8 val
)
195 struct device
*dev
= rtlpriv
->io
.dev
;
197 _usb_write_async(to_usb_device(dev
), addr
, val
, 1);
200 static void _usb_write16_async(struct rtl_priv
*rtlpriv
, u32 addr
, u16 val
)
202 struct device
*dev
= rtlpriv
->io
.dev
;
204 _usb_write_async(to_usb_device(dev
), addr
, val
, 2);
207 static void _usb_write32_async(struct rtl_priv
*rtlpriv
, u32 addr
, u32 val
)
209 struct device
*dev
= rtlpriv
->io
.dev
;
211 _usb_write_async(to_usb_device(dev
), addr
, val
, 4);
214 static void _usb_writeN_sync(struct rtl_priv
*rtlpriv
, u32 addr
, void *data
,
217 struct device
*dev
= rtlpriv
->io
.dev
;
218 struct usb_device
*udev
= to_usb_device(dev
);
219 u8 request
= REALTEK_USB_VENQT_CMD_REQ
;
220 u8 reqtype
= REALTEK_USB_VENQT_WRITE
;
222 u16 index
= REALTEK_USB_VENQT_CMD_IDX
;
223 int pipe
= usb_sndctrlpipe(udev
, 0); /* write_out */
226 wvalue
= (u16
)(addr
& 0x0000ffff);
227 buffer
= kmemdup(data
, len
, GFP_ATOMIC
);
230 usb_control_msg(udev
, pipe
, request
, reqtype
, wvalue
,
231 index
, buffer
, len
, 50);
236 static void _rtl_usb_io_handler_init(struct device
*dev
,
237 struct ieee80211_hw
*hw
)
239 struct rtl_priv
*rtlpriv
= rtl_priv(hw
);
241 rtlpriv
->io
.dev
= dev
;
242 mutex_init(&rtlpriv
->io
.bb_mutex
);
243 rtlpriv
->io
.write8_async
= _usb_write8_async
;
244 rtlpriv
->io
.write16_async
= _usb_write16_async
;
245 rtlpriv
->io
.write32_async
= _usb_write32_async
;
246 rtlpriv
->io
.read8_sync
= _usb_read8_sync
;
247 rtlpriv
->io
.read16_sync
= _usb_read16_sync
;
248 rtlpriv
->io
.read32_sync
= _usb_read32_sync
;
249 rtlpriv
->io
.writeN_sync
= _usb_writeN_sync
;
252 static void _rtl_usb_io_handler_release(struct ieee80211_hw
*hw
)
254 struct rtl_priv __maybe_unused
*rtlpriv
= rtl_priv(hw
);
256 mutex_destroy(&rtlpriv
->io
.bb_mutex
);
261 * Default aggregation handler. Do nothing and just return the oldest skb.
263 static struct sk_buff
*_none_usb_tx_aggregate_hdl(struct ieee80211_hw
*hw
,
264 struct sk_buff_head
*list
)
266 return skb_dequeue(list
);
269 #define IS_HIGH_SPEED_USB(udev) \
270 ((USB_SPEED_HIGH == (udev)->speed) ? true : false)
272 static int _rtl_usb_init_tx(struct ieee80211_hw
*hw
)
275 struct rtl_priv
*rtlpriv
= rtl_priv(hw
);
276 struct rtl_usb
*rtlusb
= rtl_usbdev(rtl_usbpriv(hw
));
278 rtlusb
->max_bulk_out_size
= IS_HIGH_SPEED_USB(rtlusb
->udev
)
279 ? USB_HIGH_SPEED_BULK_SIZE
280 : USB_FULL_SPEED_BULK_SIZE
;
282 RT_TRACE(rtlpriv
, COMP_INIT
, DBG_DMESG
, "USB Max Bulk-out Size=%d\n",
283 rtlusb
->max_bulk_out_size
);
285 for (i
= 0; i
< __RTL_TXQ_NUM
; i
++) {
286 u32 ep_num
= rtlusb
->ep_map
.ep_mapping
[i
];
288 RT_TRACE(rtlpriv
, COMP_INIT
, DBG_DMESG
,
289 "Invalid endpoint map setting!\n");
294 rtlusb
->usb_tx_post_hdl
=
295 rtlpriv
->cfg
->usb_interface_cfg
->usb_tx_post_hdl
;
296 rtlusb
->usb_tx_cleanup
=
297 rtlpriv
->cfg
->usb_interface_cfg
->usb_tx_cleanup
;
298 rtlusb
->usb_tx_aggregate_hdl
=
299 (rtlpriv
->cfg
->usb_interface_cfg
->usb_tx_aggregate_hdl
)
300 ? rtlpriv
->cfg
->usb_interface_cfg
->usb_tx_aggregate_hdl
301 : &_none_usb_tx_aggregate_hdl
;
303 init_usb_anchor(&rtlusb
->tx_submitted
);
304 for (i
= 0; i
< RTL_USB_MAX_EP_NUM
; i
++) {
305 skb_queue_head_init(&rtlusb
->tx_skb_queue
[i
]);
306 init_usb_anchor(&rtlusb
->tx_pending
[i
]);
311 static void _rtl_rx_work(unsigned long param
);
313 static int _rtl_usb_init_rx(struct ieee80211_hw
*hw
)
315 struct rtl_priv
*rtlpriv
= rtl_priv(hw
);
316 struct rtl_usb_priv
*usb_priv
= rtl_usbpriv(hw
);
317 struct rtl_usb
*rtlusb
= rtl_usbdev(usb_priv
);
319 rtlusb
->rx_max_size
= rtlpriv
->cfg
->usb_interface_cfg
->rx_max_size
;
320 rtlusb
->rx_urb_num
= rtlpriv
->cfg
->usb_interface_cfg
->rx_urb_num
;
321 rtlusb
->in_ep
= rtlpriv
->cfg
->usb_interface_cfg
->in_ep_num
;
322 rtlusb
->usb_rx_hdl
= rtlpriv
->cfg
->usb_interface_cfg
->usb_rx_hdl
;
323 rtlusb
->usb_rx_segregate_hdl
=
324 rtlpriv
->cfg
->usb_interface_cfg
->usb_rx_segregate_hdl
;
326 pr_info("rx_max_size %d, rx_urb_num %d, in_ep %d\n",
327 rtlusb
->rx_max_size
, rtlusb
->rx_urb_num
, rtlusb
->in_ep
);
328 init_usb_anchor(&rtlusb
->rx_submitted
);
329 init_usb_anchor(&rtlusb
->rx_cleanup_urbs
);
331 skb_queue_head_init(&rtlusb
->rx_queue
);
332 rtlusb
->rx_work_tasklet
.func
= _rtl_rx_work
;
333 rtlusb
->rx_work_tasklet
.data
= (unsigned long)rtlusb
;
338 static int _rtl_usb_init(struct ieee80211_hw
*hw
)
340 struct rtl_priv
*rtlpriv
= rtl_priv(hw
);
341 struct rtl_usb_priv
*usb_priv
= rtl_usbpriv(hw
);
342 struct rtl_usb
*rtlusb
= rtl_usbdev(usb_priv
);
345 struct usb_interface
*usb_intf
= rtlusb
->intf
;
346 u8 epnums
= usb_intf
->cur_altsetting
->desc
.bNumEndpoints
;
348 rtlusb
->out_ep_nums
= rtlusb
->in_ep_nums
= 0;
349 for (epidx
= 0; epidx
< epnums
; epidx
++) {
350 struct usb_endpoint_descriptor
*pep_desc
;
351 pep_desc
= &usb_intf
->cur_altsetting
->endpoint
[epidx
].desc
;
353 if (usb_endpoint_dir_in(pep_desc
))
354 rtlusb
->in_ep_nums
++;
355 else if (usb_endpoint_dir_out(pep_desc
))
356 rtlusb
->out_ep_nums
++;
358 RT_TRACE(rtlpriv
, COMP_INIT
, DBG_DMESG
,
359 "USB EP(0x%02x), MaxPacketSize=%d, Interval=%d\n",
360 pep_desc
->bEndpointAddress
, pep_desc
->wMaxPacketSize
,
361 pep_desc
->bInterval
);
363 if (rtlusb
->in_ep_nums
< rtlpriv
->cfg
->usb_interface_cfg
->in_ep_num
) {
364 pr_err("Too few input end points found\n");
367 if (rtlusb
->out_ep_nums
== 0) {
368 pr_err("No output end points found\n");
371 /* usb endpoint mapping */
372 err
= rtlpriv
->cfg
->usb_interface_cfg
->usb_endpoint_mapping(hw
);
373 rtlusb
->usb_mq_to_hwq
= rtlpriv
->cfg
->usb_interface_cfg
->usb_mq_to_hwq
;
374 _rtl_usb_init_tx(hw
);
375 _rtl_usb_init_rx(hw
);
379 static void rtl_usb_init_sw(struct ieee80211_hw
*hw
)
381 struct rtl_mac
*mac
= rtl_mac(rtl_priv(hw
));
382 struct rtl_hal
*rtlhal
= rtl_hal(rtl_priv(hw
));
383 struct rtl_ps_ctl
*ppsc
= rtl_psc(rtl_priv(hw
));
384 struct rtl_usb
*rtlusb
= rtl_usbdev(rtl_usbpriv(hw
));
387 ppsc
->inactiveps
= false;
388 ppsc
->leisure_ps
= false;
389 ppsc
->fwctrl_lps
= false;
390 ppsc
->reg_fwctrl_lps
= 3;
391 ppsc
->reg_max_lps_awakeintvl
= 5;
392 ppsc
->fwctrl_psmode
= FW_PS_DTIM_MODE
;
395 mac
->beacon_interval
= 100;
398 mac
->min_space_cfg
= 0;
399 mac
->max_mss_density
= 0;
401 /* set sane AMPDU defaults */
402 mac
->current_ampdu_density
= 7;
403 mac
->current_ampdu_factor
= 3;
406 rtlusb
->acm_method
= eAcmWay2_SW
;
409 /* HIMR - turn all on */
410 rtlusb
->irq_mask
[0] = 0xFFFFFFFF;
411 /* HIMR_EX - turn all on */
412 rtlusb
->irq_mask
[1] = 0xFFFFFFFF;
413 rtlusb
->disableHWSM
= true;
416 static void _rtl_rx_completed(struct urb
*urb
);
418 static int _rtl_prep_rx_urb(struct ieee80211_hw
*hw
, struct rtl_usb
*rtlusb
,
419 struct urb
*urb
, gfp_t gfp_mask
)
421 struct rtl_priv
*rtlpriv
= rtl_priv(hw
);
424 buf
= usb_alloc_coherent(rtlusb
->udev
, rtlusb
->rx_max_size
, gfp_mask
,
427 RT_TRACE(rtlpriv
, COMP_USB
, DBG_EMERG
,
428 "Failed to usb_alloc_coherent!!\n");
432 usb_fill_bulk_urb(urb
, rtlusb
->udev
,
433 usb_rcvbulkpipe(rtlusb
->udev
, rtlusb
->in_ep
),
434 buf
, rtlusb
->rx_max_size
, _rtl_rx_completed
, rtlusb
);
435 urb
->transfer_flags
|= URB_NO_TRANSFER_DMA_MAP
;
440 static void _rtl_usb_rx_process_agg(struct ieee80211_hw
*hw
,
443 struct rtl_priv
*rtlpriv
= rtl_priv(hw
);
444 u8
*rxdesc
= skb
->data
;
445 struct ieee80211_hdr
*hdr
;
446 bool unicast
= false;
448 struct ieee80211_rx_status rx_status
= {0};
449 struct rtl_stats stats
= {
455 skb_pull(skb
, RTL_RX_DESC_SIZE
);
456 rtlpriv
->cfg
->ops
->query_rx_desc(hw
, &stats
, &rx_status
, rxdesc
, skb
);
457 skb_pull(skb
, (stats
.rx_drvinfo_size
+ stats
.rx_bufshift
));
458 hdr
= (struct ieee80211_hdr
*)(skb
->data
);
459 fc
= hdr
->frame_control
;
461 memcpy(IEEE80211_SKB_RXCB(skb
), &rx_status
, sizeof(rx_status
));
463 if (is_broadcast_ether_addr(hdr
->addr1
)) {
465 } else if (is_multicast_ether_addr(hdr
->addr1
)) {
469 rtlpriv
->stats
.rxbytesunicast
+= skb
->len
;
472 rtl_is_special_data(hw
, skb
, false);
474 if (ieee80211_is_data(fc
)) {
475 rtlpriv
->cfg
->ops
->led_control(hw
, LED_CTL_RX
);
478 rtlpriv
->link_info
.num_rx_inperiod
++;
483 static void _rtl_usb_rx_process_noagg(struct ieee80211_hw
*hw
,
486 struct rtl_priv
*rtlpriv
= rtl_priv(hw
);
487 u8
*rxdesc
= skb
->data
;
488 struct ieee80211_hdr
*hdr
;
489 bool unicast
= false;
491 struct ieee80211_rx_status rx_status
= {0};
492 struct rtl_stats stats
= {
498 skb_pull(skb
, RTL_RX_DESC_SIZE
);
499 rtlpriv
->cfg
->ops
->query_rx_desc(hw
, &stats
, &rx_status
, rxdesc
, skb
);
500 skb_pull(skb
, (stats
.rx_drvinfo_size
+ stats
.rx_bufshift
));
501 hdr
= (struct ieee80211_hdr
*)(skb
->data
);
502 fc
= hdr
->frame_control
;
504 memcpy(IEEE80211_SKB_RXCB(skb
), &rx_status
, sizeof(rx_status
));
506 if (is_broadcast_ether_addr(hdr
->addr1
)) {
508 } else if (is_multicast_ether_addr(hdr
->addr1
)) {
512 rtlpriv
->stats
.rxbytesunicast
+= skb
->len
;
515 rtl_is_special_data(hw
, skb
, false);
517 if (ieee80211_is_data(fc
)) {
518 rtlpriv
->cfg
->ops
->led_control(hw
, LED_CTL_RX
);
521 rtlpriv
->link_info
.num_rx_inperiod
++;
524 if (likely(rtl_action_proc(hw
, skb
, false)))
525 ieee80211_rx(hw
, skb
);
527 dev_kfree_skb_any(skb
);
531 static void _rtl_rx_pre_process(struct ieee80211_hw
*hw
, struct sk_buff
*skb
)
533 struct sk_buff
*_skb
;
534 struct sk_buff_head rx_queue
;
535 struct rtl_usb
*rtlusb
= rtl_usbdev(rtl_usbpriv(hw
));
537 skb_queue_head_init(&rx_queue
);
538 if (rtlusb
->usb_rx_segregate_hdl
)
539 rtlusb
->usb_rx_segregate_hdl(hw
, skb
, &rx_queue
);
540 WARN_ON(skb_queue_empty(&rx_queue
));
541 while (!skb_queue_empty(&rx_queue
)) {
542 _skb
= skb_dequeue(&rx_queue
);
543 _rtl_usb_rx_process_agg(hw
, _skb
);
544 ieee80211_rx(hw
, _skb
);
548 #define __RX_SKB_MAX_QUEUED 32
550 static void _rtl_rx_work(unsigned long param
)
552 struct rtl_usb
*rtlusb
= (struct rtl_usb
*)param
;
553 struct ieee80211_hw
*hw
= usb_get_intfdata(rtlusb
->intf
);
556 while ((skb
= skb_dequeue(&rtlusb
->rx_queue
))) {
557 if (unlikely(IS_USB_STOP(rtlusb
))) {
558 dev_kfree_skb_any(skb
);
562 if (likely(!rtlusb
->usb_rx_segregate_hdl
)) {
563 _rtl_usb_rx_process_noagg(hw
, skb
);
566 _rtl_rx_pre_process(hw
, skb
);
567 pr_err("rx agg not supported\n");
572 #define __RADIO_TAP_SIZE_RSV 32
574 static void _rtl_rx_completed(struct urb
*_urb
)
576 struct rtl_usb
*rtlusb
= (struct rtl_usb
*)_urb
->context
;
577 struct ieee80211_hw
*hw
= usb_get_intfdata(rtlusb
->intf
);
578 struct rtl_priv
*rtlpriv
= rtl_priv(hw
);
581 if (unlikely(IS_USB_STOP(rtlusb
)))
584 if (likely(0 == _urb
->status
)) {
587 unsigned int size
= _urb
->actual_length
;
589 if (size
< RTL_RX_DESC_SIZE
+ sizeof(struct ieee80211_hdr
)) {
590 RT_TRACE(rtlpriv
, COMP_USB
, DBG_EMERG
,
591 "Too short packet from bulk IN! (len: %d)\n",
596 qlen
= skb_queue_len(&rtlusb
->rx_queue
);
597 if (qlen
>= __RX_SKB_MAX_QUEUED
) {
598 RT_TRACE(rtlpriv
, COMP_USB
, DBG_EMERG
,
599 "Pending RX skbuff queue full! (qlen: %d)\n",
604 skb
= dev_alloc_skb(size
+ __RADIO_TAP_SIZE_RSV
);
606 RT_TRACE(rtlpriv
, COMP_USB
, DBG_EMERG
,
607 "Can't allocate skb for bulk IN!\n");
611 _rtl_install_trx_info(rtlusb
, skb
, rtlusb
->in_ep
);
613 /* reserve some space for mac80211's radiotap */
614 skb_reserve(skb
, __RADIO_TAP_SIZE_RSV
);
616 memcpy(skb_put(skb
, size
), _urb
->transfer_buffer
, size
);
618 skb_queue_tail(&rtlusb
->rx_queue
, skb
);
619 tasklet_schedule(&rtlusb
->rx_work_tasklet
);
624 switch (_urb
->status
) {
636 usb_anchor_urb(_urb
, &rtlusb
->rx_submitted
);
637 err
= usb_submit_urb(_urb
, GFP_ATOMIC
);
639 usb_unanchor_urb(_urb
);
645 /* On some architectures, usb_free_coherent must not be called from
646 * hardirq context. Queue urb to cleanup list.
648 usb_anchor_urb(_urb
, &rtlusb
->rx_cleanup_urbs
);
651 #undef __RADIO_TAP_SIZE_RSV
653 static void _rtl_usb_cleanup_rx(struct ieee80211_hw
*hw
)
655 struct rtl_usb
*rtlusb
= rtl_usbdev(rtl_usbpriv(hw
));
658 usb_kill_anchored_urbs(&rtlusb
->rx_submitted
);
660 tasklet_kill(&rtlusb
->rx_work_tasklet
);
661 skb_queue_purge(&rtlusb
->rx_queue
);
663 while ((urb
= usb_get_from_anchor(&rtlusb
->rx_cleanup_urbs
))) {
664 usb_free_coherent(urb
->dev
, urb
->transfer_buffer_length
,
665 urb
->transfer_buffer
, urb
->transfer_dma
);
670 static int _rtl_usb_receive(struct ieee80211_hw
*hw
)
675 struct rtl_priv
*rtlpriv
= rtl_priv(hw
);
676 struct rtl_usb
*rtlusb
= rtl_usbdev(rtl_usbpriv(hw
));
678 WARN_ON(0 == rtlusb
->rx_urb_num
);
679 /* 1600 == 1514 + max WLAN header + rtk info */
680 WARN_ON(rtlusb
->rx_max_size
< 1600);
682 for (i
= 0; i
< rtlusb
->rx_urb_num
; i
++) {
684 urb
= usb_alloc_urb(0, GFP_KERNEL
);
686 RT_TRACE(rtlpriv
, COMP_USB
, DBG_EMERG
,
687 "Failed to alloc URB!!\n");
691 err
= _rtl_prep_rx_urb(hw
, rtlusb
, urb
, GFP_KERNEL
);
693 RT_TRACE(rtlpriv
, COMP_USB
, DBG_EMERG
,
694 "Failed to prep_rx_urb!!\n");
699 usb_anchor_urb(urb
, &rtlusb
->rx_submitted
);
700 err
= usb_submit_urb(urb
, GFP_KERNEL
);
708 usb_kill_anchored_urbs(&rtlusb
->rx_submitted
);
709 _rtl_usb_cleanup_rx(hw
);
713 static int rtl_usb_start(struct ieee80211_hw
*hw
)
716 struct rtl_priv
*rtlpriv
= rtl_priv(hw
);
717 struct rtl_hal
*rtlhal
= rtl_hal(rtl_priv(hw
));
718 struct rtl_usb
*rtlusb
= rtl_usbdev(rtl_usbpriv(hw
));
720 err
= rtlpriv
->cfg
->ops
->hw_init(hw
);
722 rtl_init_rx_config(hw
);
724 /* Enable software */
725 SET_USB_START(rtlusb
);
726 /* should after adapter start and interrupt enable. */
727 set_hal_start(rtlhal
);
730 err
= _rtl_usb_receive(hw
);
740 /*======================= tx =========================================*/
741 static void rtl_usb_cleanup(struct ieee80211_hw
*hw
)
744 struct sk_buff
*_skb
;
745 struct rtl_usb
*rtlusb
= rtl_usbdev(rtl_usbpriv(hw
));
746 struct ieee80211_tx_info
*txinfo
;
748 SET_USB_STOP(rtlusb
);
750 /* clean up rx stuff. */
751 _rtl_usb_cleanup_rx(hw
);
753 /* clean up tx stuff */
754 for (i
= 0; i
< RTL_USB_MAX_EP_NUM
; i
++) {
755 while ((_skb
= skb_dequeue(&rtlusb
->tx_skb_queue
[i
]))) {
756 rtlusb
->usb_tx_cleanup(hw
, _skb
);
757 txinfo
= IEEE80211_SKB_CB(_skb
);
758 ieee80211_tx_info_clear_status(txinfo
);
759 txinfo
->flags
|= IEEE80211_TX_STAT_ACK
;
760 ieee80211_tx_status_irqsafe(hw
, _skb
);
762 usb_kill_anchored_urbs(&rtlusb
->tx_pending
[i
]);
764 usb_kill_anchored_urbs(&rtlusb
->tx_submitted
);
769 * We may add some struct into struct rtl_usb later. Do deinit here.
772 static void rtl_usb_deinit(struct ieee80211_hw
*hw
)
777 static void rtl_usb_stop(struct ieee80211_hw
*hw
)
779 struct rtl_priv
*rtlpriv
= rtl_priv(hw
);
780 struct rtl_hal
*rtlhal
= rtl_hal(rtl_priv(hw
));
781 struct rtl_usb
*rtlusb
= rtl_usbdev(rtl_usbpriv(hw
));
783 /* should after adapter start and interrupt enable. */
784 set_hal_stop(rtlhal
);
785 /* Enable software */
786 SET_USB_STOP(rtlusb
);
788 rtlpriv
->cfg
->ops
->hw_disable(hw
);
791 static void _rtl_submit_tx_urb(struct ieee80211_hw
*hw
, struct urb
*_urb
)
794 struct rtl_priv
*rtlpriv
= rtl_priv(hw
);
795 struct rtl_usb
*rtlusb
= rtl_usbdev(rtl_usbpriv(hw
));
797 usb_anchor_urb(_urb
, &rtlusb
->tx_submitted
);
798 err
= usb_submit_urb(_urb
, GFP_ATOMIC
);
802 RT_TRACE(rtlpriv
, COMP_USB
, DBG_EMERG
,
803 "Failed to submit urb\n");
804 usb_unanchor_urb(_urb
);
805 skb
= (struct sk_buff
*)_urb
->context
;
811 static int _usb_tx_post(struct ieee80211_hw
*hw
, struct urb
*urb
,
814 struct rtl_priv
*rtlpriv
= rtl_priv(hw
);
815 struct rtl_usb
*rtlusb
= rtl_usbdev(rtl_usbpriv(hw
));
816 struct ieee80211_tx_info
*txinfo
;
818 rtlusb
->usb_tx_post_hdl(hw
, urb
, skb
);
819 skb_pull(skb
, RTL_TX_HEADER_SIZE
);
820 txinfo
= IEEE80211_SKB_CB(skb
);
821 ieee80211_tx_info_clear_status(txinfo
);
822 txinfo
->flags
|= IEEE80211_TX_STAT_ACK
;
825 RT_TRACE(rtlpriv
, COMP_USB
, DBG_EMERG
,
826 "Urb has error status 0x%X\n", urb
->status
);
829 /* TODO: statistics */
831 ieee80211_tx_status_irqsafe(hw
, skb
);
835 static void _rtl_tx_complete(struct urb
*urb
)
837 struct sk_buff
*skb
= (struct sk_buff
*)urb
->context
;
838 struct ieee80211_tx_info
*info
= IEEE80211_SKB_CB(skb
);
839 struct rtl_usb
*rtlusb
= (struct rtl_usb
*)info
->rate_driver_data
[0];
840 struct ieee80211_hw
*hw
= usb_get_intfdata(rtlusb
->intf
);
843 if (unlikely(IS_USB_STOP(rtlusb
)))
845 err
= _usb_tx_post(hw
, urb
, skb
);
847 /* Ignore error and keep issuiing other urbs */
852 static struct urb
*_rtl_usb_tx_urb_setup(struct ieee80211_hw
*hw
,
853 struct sk_buff
*skb
, u32 ep_num
)
855 struct rtl_priv
*rtlpriv
= rtl_priv(hw
);
856 struct rtl_usb
*rtlusb
= rtl_usbdev(rtl_usbpriv(hw
));
859 WARN_ON(NULL
== skb
);
860 _urb
= usb_alloc_urb(0, GFP_ATOMIC
);
862 RT_TRACE(rtlpriv
, COMP_USB
, DBG_EMERG
,
863 "Can't allocate URB for bulk out!\n");
867 _rtl_install_trx_info(rtlusb
, skb
, ep_num
);
868 usb_fill_bulk_urb(_urb
, rtlusb
->udev
, usb_sndbulkpipe(rtlusb
->udev
,
869 ep_num
), skb
->data
, skb
->len
, _rtl_tx_complete
, skb
);
870 _urb
->transfer_flags
|= URB_ZERO_PACKET
;
874 static void _rtl_usb_transmit(struct ieee80211_hw
*hw
, struct sk_buff
*skb
,
877 struct rtl_priv
*rtlpriv
= rtl_priv(hw
);
878 struct rtl_usb
*rtlusb
= rtl_usbdev(rtl_usbpriv(hw
));
880 struct urb
*_urb
= NULL
;
881 struct sk_buff
*_skb
= NULL
;
883 WARN_ON(NULL
== rtlusb
->usb_tx_aggregate_hdl
);
884 if (unlikely(IS_USB_STOP(rtlusb
))) {
885 RT_TRACE(rtlpriv
, COMP_USB
, DBG_EMERG
,
886 "USB device is stopping...\n");
890 ep_num
= rtlusb
->ep_map
.ep_mapping
[qnum
];
892 _urb
= _rtl_usb_tx_urb_setup(hw
, _skb
, ep_num
);
893 if (unlikely(!_urb
)) {
894 RT_TRACE(rtlpriv
, COMP_ERR
, DBG_EMERG
,
895 "Can't allocate urb. Drop skb!\n");
898 _rtl_submit_tx_urb(hw
, _urb
);
901 static void _rtl_usb_tx_preprocess(struct ieee80211_hw
*hw
,
902 struct ieee80211_sta
*sta
,
906 struct rtl_priv
*rtlpriv
= rtl_priv(hw
);
907 struct rtl_mac
*mac
= rtl_mac(rtl_priv(hw
));
908 struct ieee80211_tx_info
*info
= IEEE80211_SKB_CB(skb
);
909 struct rtl_tx_desc
*pdesc
= NULL
;
910 struct rtl_tcb_desc tcb_desc
;
911 struct ieee80211_hdr
*hdr
= (struct ieee80211_hdr
*)(skb
->data
);
912 __le16 fc
= hdr
->frame_control
;
913 u8
*pda_addr
= hdr
->addr1
;
919 memset(&tcb_desc
, 0, sizeof(struct rtl_tcb_desc
));
920 if (ieee80211_is_auth(fc
)) {
921 RT_TRACE(rtlpriv
, COMP_SEND
, DBG_DMESG
, "MAC80211_LINKING\n");
925 if (rtlpriv
->psc
.sw_ps_enabled
) {
926 if (ieee80211_is_data(fc
) && !ieee80211_is_nullfunc(fc
) &&
927 !ieee80211_has_pm(fc
))
928 hdr
->frame_control
|= cpu_to_le16(IEEE80211_FCTL_PM
);
931 rtl_action_proc(hw
, skb
, true);
932 if (is_multicast_ether_addr(pda_addr
))
933 rtlpriv
->stats
.txbytesmulticast
+= skb
->len
;
934 else if (is_broadcast_ether_addr(pda_addr
))
935 rtlpriv
->stats
.txbytesbroadcast
+= skb
->len
;
937 rtlpriv
->stats
.txbytesunicast
+= skb
->len
;
938 if (ieee80211_is_data_qos(fc
)) {
939 qc
= ieee80211_get_qos_ctl(hdr
);
940 tid
= qc
[0] & IEEE80211_QOS_CTL_TID_MASK
;
941 seq_number
= (le16_to_cpu(hdr
->seq_ctrl
) &
942 IEEE80211_SCTL_SEQ
) >> 4;
946 rtlpriv
->cfg
->ops
->fill_tx_desc(hw
, hdr
, (u8
*)pdesc
, info
, sta
, skb
,
947 hw_queue
, &tcb_desc
);
948 if (!ieee80211_has_morefrags(hdr
->frame_control
)) {
950 mac
->tids
[tid
].seq_number
= seq_number
;
952 if (ieee80211_is_data(fc
))
953 rtlpriv
->cfg
->ops
->led_control(hw
, LED_CTL_TX
);
956 static int rtl_usb_tx(struct ieee80211_hw
*hw
,
957 struct ieee80211_sta
*sta
,
959 struct rtl_tcb_desc
*dummy
)
961 struct rtl_usb
*rtlusb
= rtl_usbdev(rtl_usbpriv(hw
));
962 struct rtl_hal
*rtlhal
= rtl_hal(rtl_priv(hw
));
963 struct ieee80211_hdr
*hdr
= (struct ieee80211_hdr
*)(skb
->data
);
964 __le16 fc
= hdr
->frame_control
;
967 if (unlikely(is_hal_stop(rtlhal
)))
969 hw_queue
= rtlusb
->usb_mq_to_hwq(fc
, skb_get_queue_mapping(skb
));
970 _rtl_usb_tx_preprocess(hw
, sta
, skb
, hw_queue
);
971 _rtl_usb_transmit(hw
, skb
, hw_queue
);
975 dev_kfree_skb_any(skb
);
979 static bool rtl_usb_tx_chk_waitq_insert(struct ieee80211_hw
*hw
,
980 struct ieee80211_sta
*sta
,
986 static struct rtl_intf_ops rtl_usb_ops
= {
987 .adapter_start
= rtl_usb_start
,
988 .adapter_stop
= rtl_usb_stop
,
989 .adapter_tx
= rtl_usb_tx
,
990 .waitq_insert
= rtl_usb_tx_chk_waitq_insert
,
993 int rtl_usb_probe(struct usb_interface
*intf
,
994 const struct usb_device_id
*id
,
995 struct rtl_hal_cfg
*rtl_hal_cfg
)
998 struct ieee80211_hw
*hw
= NULL
;
999 struct rtl_priv
*rtlpriv
= NULL
;
1000 struct usb_device
*udev
;
1001 struct rtl_usb_priv
*usb_priv
;
1003 hw
= ieee80211_alloc_hw(sizeof(struct rtl_priv
) +
1004 sizeof(struct rtl_usb_priv
), &rtl_ops
);
1006 RT_ASSERT(false, "ieee80211 alloc failed\n");
1010 rtlpriv
->usb_data
= kzalloc(RTL_USB_MAX_RX_COUNT
* sizeof(u32
),
1012 if (!rtlpriv
->usb_data
)
1015 /* this spin lock must be initialized early */
1016 spin_lock_init(&rtlpriv
->locks
.usb_lock
);
1018 rtlpriv
->usb_data_index
= 0;
1019 init_completion(&rtlpriv
->firmware_loading_complete
);
1020 SET_IEEE80211_DEV(hw
, &intf
->dev
);
1021 udev
= interface_to_usbdev(intf
);
1023 usb_priv
= rtl_usbpriv(hw
);
1024 memset(usb_priv
, 0, sizeof(*usb_priv
));
1025 usb_priv
->dev
.intf
= intf
;
1026 usb_priv
->dev
.udev
= udev
;
1027 usb_set_intfdata(intf
, hw
);
1028 /* init cfg & intf_ops */
1029 rtlpriv
->rtlhal
.interface
= INTF_USB
;
1030 rtlpriv
->cfg
= rtl_hal_cfg
;
1031 rtlpriv
->intf_ops
= &rtl_usb_ops
;
1032 rtl_dbgp_flag_init(hw
);
1033 /* Init IO handler */
1034 _rtl_usb_io_handler_init(&udev
->dev
, hw
);
1035 rtlpriv
->cfg
->ops
->read_chip_version(hw
);
1036 /*like read eeprom and so on */
1037 rtlpriv
->cfg
->ops
->read_eeprom_info(hw
);
1038 err
= _rtl_usb_init(hw
);
1041 rtl_usb_init_sw(hw
);
1042 /* Init mac80211 sw */
1043 err
= rtl_init_core(hw
);
1045 RT_TRACE(rtlpriv
, COMP_ERR
, DBG_EMERG
,
1046 "Can't allocate sw for mac80211\n");
1049 if (rtlpriv
->cfg
->ops
->init_sw_vars(hw
)) {
1050 RT_TRACE(rtlpriv
, COMP_ERR
, DBG_EMERG
, "Can't init_sw_vars\n");
1053 rtlpriv
->cfg
->ops
->init_sw_leds(hw
);
1057 rtl_deinit_core(hw
);
1058 _rtl_usb_io_handler_release(hw
);
1060 complete(&rtlpriv
->firmware_loading_complete
);
1063 EXPORT_SYMBOL(rtl_usb_probe
);
1065 void rtl_usb_disconnect(struct usb_interface
*intf
)
1067 struct ieee80211_hw
*hw
= usb_get_intfdata(intf
);
1068 struct rtl_priv
*rtlpriv
= rtl_priv(hw
);
1069 struct rtl_mac
*rtlmac
= rtl_mac(rtl_priv(hw
));
1070 struct rtl_usb
*rtlusb
= rtl_usbdev(rtl_usbpriv(hw
));
1072 if (unlikely(!rtlpriv
))
1075 /* just in case driver is removed before firmware callback */
1076 wait_for_completion(&rtlpriv
->firmware_loading_complete
);
1077 /*ieee80211_unregister_hw will call ops_stop */
1078 if (rtlmac
->mac80211_registered
== 1) {
1079 ieee80211_unregister_hw(hw
);
1080 rtlmac
->mac80211_registered
= 0;
1082 rtl_deinit_deferred_work(hw
);
1083 rtlpriv
->intf_ops
->adapter_stop(hw
);
1086 /* rtl_deinit_rfkill(hw); */
1088 rtl_deinit_core(hw
);
1089 kfree(rtlpriv
->usb_data
);
1090 rtlpriv
->cfg
->ops
->deinit_sw_leds(hw
);
1091 rtlpriv
->cfg
->ops
->deinit_sw_vars(hw
);
1092 _rtl_usb_io_handler_release(hw
);
1093 usb_put_dev(rtlusb
->udev
);
1094 usb_set_intfdata(intf
, NULL
);
1095 ieee80211_free_hw(hw
);
1097 EXPORT_SYMBOL(rtl_usb_disconnect
);
1099 int rtl_usb_suspend(struct usb_interface
*pusb_intf
, pm_message_t message
)
1103 EXPORT_SYMBOL(rtl_usb_suspend
);
1105 int rtl_usb_resume(struct usb_interface
*pusb_intf
)
1109 EXPORT_SYMBOL(rtl_usb_resume
);