1 #include <linux/module.h>
2 #include <linux/dcache.h>
3 #include <linux/debugfs.h>
4 #include <linux/delay.h>
6 #include <linux/string.h>
7 #include <net/iw_handler.h>
8 #include <net/lib80211.h>
16 static struct dentry
*lbs_dir
;
17 static char *szStates
[] = {
23 static void lbs_debug_init(struct lbs_private
*priv
);
26 static int open_file_generic(struct inode
*inode
, struct file
*file
)
28 file
->private_data
= inode
->i_private
;
32 static ssize_t
write_file_dummy(struct file
*file
, const char __user
*buf
,
33 size_t count
, loff_t
*ppos
)
38 static const size_t len
= PAGE_SIZE
;
40 static ssize_t
lbs_dev_info(struct file
*file
, char __user
*userbuf
,
41 size_t count
, loff_t
*ppos
)
43 struct lbs_private
*priv
= file
->private_data
;
45 unsigned long addr
= get_zeroed_page(GFP_KERNEL
);
46 char *buf
= (char *)addr
;
51 pos
+= snprintf(buf
+pos
, len
-pos
, "state = %s\n",
52 szStates
[priv
->connect_status
]);
53 pos
+= snprintf(buf
+pos
, len
-pos
, "region_code = %02x\n",
54 (u32
) priv
->regioncode
);
56 res
= simple_read_from_buffer(userbuf
, count
, ppos
, buf
, pos
);
63 static ssize_t
lbs_getscantable(struct file
*file
, char __user
*userbuf
,
64 size_t count
, loff_t
*ppos
)
66 struct lbs_private
*priv
= file
->private_data
;
68 int numscansdone
= 0, res
;
69 unsigned long addr
= get_zeroed_page(GFP_KERNEL
);
70 char *buf
= (char *)addr
;
71 DECLARE_SSID_BUF(ssid
);
72 struct bss_descriptor
* iter_bss
;
76 pos
+= snprintf(buf
+pos
, len
-pos
,
77 "# | ch | rssi | bssid | cap | Qual | SSID \n");
79 mutex_lock(&priv
->lock
);
80 list_for_each_entry (iter_bss
, &priv
->network_list
, list
) {
81 u16 ibss
= (iter_bss
->capability
& WLAN_CAPABILITY_IBSS
);
82 u16 privacy
= (iter_bss
->capability
& WLAN_CAPABILITY_PRIVACY
);
83 u16 spectrum_mgmt
= (iter_bss
->capability
& WLAN_CAPABILITY_SPECTRUM_MGMT
);
85 pos
+= snprintf(buf
+pos
, len
-pos
, "%02u| %03d | %04d | %pM |",
86 numscansdone
, iter_bss
->channel
, iter_bss
->rssi
,
88 pos
+= snprintf(buf
+pos
, len
-pos
, " %04x-", iter_bss
->capability
);
89 pos
+= snprintf(buf
+pos
, len
-pos
, "%c%c%c |",
90 ibss
? 'A' : 'I', privacy
? 'P' : ' ',
91 spectrum_mgmt
? 'S' : ' ');
92 pos
+= snprintf(buf
+pos
, len
-pos
, " %04d |", SCAN_RSSI(iter_bss
->rssi
));
93 pos
+= snprintf(buf
+pos
, len
-pos
, " %s\n",
94 print_ssid(ssid
, iter_bss
->ssid
,
99 mutex_unlock(&priv
->lock
);
101 res
= simple_read_from_buffer(userbuf
, count
, ppos
, buf
, pos
);
107 static ssize_t
lbs_sleepparams_write(struct file
*file
,
108 const char __user
*user_buf
, size_t count
,
111 struct lbs_private
*priv
= file
->private_data
;
112 ssize_t buf_size
, ret
;
113 struct sleep_params sp
;
114 int p1
, p2
, p3
, p4
, p5
, p6
;
115 unsigned long addr
= get_zeroed_page(GFP_KERNEL
);
116 char *buf
= (char *)addr
;
120 buf_size
= min(count
, len
- 1);
121 if (copy_from_user(buf
, user_buf
, buf_size
)) {
125 ret
= sscanf(buf
, "%d %d %d %d %d %d", &p1
, &p2
, &p3
, &p4
, &p5
, &p6
);
132 sp
.sp_stabletime
= p3
;
133 sp
.sp_calcontrol
= p4
;
134 sp
.sp_extsleepclk
= p5
;
137 ret
= lbs_cmd_802_11_sleep_params(priv
, CMD_ACT_SET
, &sp
);
148 static ssize_t
lbs_sleepparams_read(struct file
*file
, char __user
*userbuf
,
149 size_t count
, loff_t
*ppos
)
151 struct lbs_private
*priv
= file
->private_data
;
154 struct sleep_params sp
;
155 unsigned long addr
= get_zeroed_page(GFP_KERNEL
);
156 char *buf
= (char *)addr
;
160 ret
= lbs_cmd_802_11_sleep_params(priv
, CMD_ACT_GET
, &sp
);
164 pos
+= snprintf(buf
, len
, "%d %d %d %d %d %d\n", sp
.sp_error
,
165 sp
.sp_offset
, sp
.sp_stabletime
,
166 sp
.sp_calcontrol
, sp
.sp_extsleepclk
,
169 ret
= simple_read_from_buffer(userbuf
, count
, ppos
, buf
, pos
);
177 * When calling CMD_802_11_SUBSCRIBE_EVENT with CMD_ACT_GET, me might
178 * get a bunch of vendor-specific TLVs (a.k.a. IEs) back from the
179 * firmware. Here's an example:
180 * 04 01 02 00 00 00 05 01 02 00 00 00 06 01 02 00
181 * 00 00 07 01 02 00 3c 00 00 00 00 00 00 00 03 03
182 * 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
184 * The 04 01 is the TLV type (here TLV_TYPE_RSSI_LOW), 02 00 is the length,
185 * 00 00 are the data bytes of this TLV. For this TLV, their meaning is
186 * defined in mrvlietypes_thresholds
188 * This function searches in this TLV data chunk for a given TLV type
189 * and returns a pointer to the first data byte of the TLV, or to NULL
190 * if the TLV hasn't been found.
192 static void *lbs_tlv_find(uint16_t tlv_type
, const uint8_t *tlv
, uint16_t size
)
194 struct mrvl_ie_header
*tlv_h
;
199 tlv_h
= (struct mrvl_ie_header
*) tlv
;
202 if (tlv_h
->type
== cpu_to_le16(tlv_type
))
204 length
= le16_to_cpu(tlv_h
->len
) + sizeof(*tlv_h
);
212 static ssize_t
lbs_threshold_read(uint16_t tlv_type
, uint16_t event_mask
,
213 struct file
*file
, char __user
*userbuf
,
214 size_t count
, loff_t
*ppos
)
216 struct cmd_ds_802_11_subscribe_event
*subscribed
;
217 struct mrvl_ie_thresholds
*got
;
218 struct lbs_private
*priv
= file
->private_data
;
226 buf
= (char *)get_zeroed_page(GFP_KERNEL
);
230 subscribed
= kzalloc(sizeof(*subscribed
), GFP_KERNEL
);
236 subscribed
->hdr
.size
= cpu_to_le16(sizeof(*subscribed
));
237 subscribed
->action
= cpu_to_le16(CMD_ACT_GET
);
239 ret
= lbs_cmd_with_response(priv
, CMD_802_11_SUBSCRIBE_EVENT
, subscribed
);
243 got
= lbs_tlv_find(tlv_type
, subscribed
->tlv
, sizeof(subscribed
->tlv
));
247 events
= le16_to_cpu(subscribed
->events
);
249 pos
+= snprintf(buf
, len
, "%d %d %d\n", value
, freq
,
250 !!(events
& event_mask
));
253 ret
= simple_read_from_buffer(userbuf
, count
, ppos
, buf
, pos
);
259 free_page((unsigned long)buf
);
264 static ssize_t
lbs_threshold_write(uint16_t tlv_type
, uint16_t event_mask
,
266 const char __user
*userbuf
, size_t count
,
269 struct cmd_ds_802_11_subscribe_event
*events
;
270 struct mrvl_ie_thresholds
*tlv
;
271 struct lbs_private
*priv
= file
->private_data
;
273 int value
, freq
, new_mask
;
278 buf
= (char *)get_zeroed_page(GFP_KERNEL
);
282 buf_size
= min(count
, len
- 1);
283 if (copy_from_user(buf
, userbuf
, buf_size
)) {
287 ret
= sscanf(buf
, "%d %d %d", &value
, &freq
, &new_mask
);
292 events
= kzalloc(sizeof(*events
), GFP_KERNEL
);
298 events
->hdr
.size
= cpu_to_le16(sizeof(*events
));
299 events
->action
= cpu_to_le16(CMD_ACT_GET
);
301 ret
= lbs_cmd_with_response(priv
, CMD_802_11_SUBSCRIBE_EVENT
, events
);
305 curr_mask
= le16_to_cpu(events
->events
);
308 new_mask
= curr_mask
| event_mask
;
310 new_mask
= curr_mask
& ~event_mask
;
312 /* Now everything is set and we can send stuff down to the firmware */
314 tlv
= (void *)events
->tlv
;
316 events
->action
= cpu_to_le16(CMD_ACT_SET
);
317 events
->events
= cpu_to_le16(new_mask
);
318 tlv
->header
.type
= cpu_to_le16(tlv_type
);
319 tlv
->header
.len
= cpu_to_le16(sizeof(*tlv
) - sizeof(tlv
->header
));
321 if (tlv_type
!= TLV_TYPE_BCNMISS
)
324 /* The command header, the action, the event mask, and one TLV */
325 events
->hdr
.size
= cpu_to_le16(sizeof(events
->hdr
) + 4 + sizeof(*tlv
));
327 ret
= lbs_cmd_with_response(priv
, CMD_802_11_SUBSCRIBE_EVENT
, events
);
334 free_page((unsigned long)buf
);
339 static ssize_t
lbs_lowrssi_read(struct file
*file
, char __user
*userbuf
,
340 size_t count
, loff_t
*ppos
)
342 return lbs_threshold_read(TLV_TYPE_RSSI_LOW
, CMD_SUBSCRIBE_RSSI_LOW
,
343 file
, userbuf
, count
, ppos
);
347 static ssize_t
lbs_lowrssi_write(struct file
*file
, const char __user
*userbuf
,
348 size_t count
, loff_t
*ppos
)
350 return lbs_threshold_write(TLV_TYPE_RSSI_LOW
, CMD_SUBSCRIBE_RSSI_LOW
,
351 file
, userbuf
, count
, ppos
);
355 static ssize_t
lbs_lowsnr_read(struct file
*file
, char __user
*userbuf
,
356 size_t count
, loff_t
*ppos
)
358 return lbs_threshold_read(TLV_TYPE_SNR_LOW
, CMD_SUBSCRIBE_SNR_LOW
,
359 file
, userbuf
, count
, ppos
);
363 static ssize_t
lbs_lowsnr_write(struct file
*file
, const char __user
*userbuf
,
364 size_t count
, loff_t
*ppos
)
366 return lbs_threshold_write(TLV_TYPE_SNR_LOW
, CMD_SUBSCRIBE_SNR_LOW
,
367 file
, userbuf
, count
, ppos
);
371 static ssize_t
lbs_failcount_read(struct file
*file
, char __user
*userbuf
,
372 size_t count
, loff_t
*ppos
)
374 return lbs_threshold_read(TLV_TYPE_FAILCOUNT
, CMD_SUBSCRIBE_FAILCOUNT
,
375 file
, userbuf
, count
, ppos
);
379 static ssize_t
lbs_failcount_write(struct file
*file
, const char __user
*userbuf
,
380 size_t count
, loff_t
*ppos
)
382 return lbs_threshold_write(TLV_TYPE_FAILCOUNT
, CMD_SUBSCRIBE_FAILCOUNT
,
383 file
, userbuf
, count
, ppos
);
387 static ssize_t
lbs_highrssi_read(struct file
*file
, char __user
*userbuf
,
388 size_t count
, loff_t
*ppos
)
390 return lbs_threshold_read(TLV_TYPE_RSSI_HIGH
, CMD_SUBSCRIBE_RSSI_HIGH
,
391 file
, userbuf
, count
, ppos
);
395 static ssize_t
lbs_highrssi_write(struct file
*file
, const char __user
*userbuf
,
396 size_t count
, loff_t
*ppos
)
398 return lbs_threshold_write(TLV_TYPE_RSSI_HIGH
, CMD_SUBSCRIBE_RSSI_HIGH
,
399 file
, userbuf
, count
, ppos
);
403 static ssize_t
lbs_highsnr_read(struct file
*file
, char __user
*userbuf
,
404 size_t count
, loff_t
*ppos
)
406 return lbs_threshold_read(TLV_TYPE_SNR_HIGH
, CMD_SUBSCRIBE_SNR_HIGH
,
407 file
, userbuf
, count
, ppos
);
411 static ssize_t
lbs_highsnr_write(struct file
*file
, const char __user
*userbuf
,
412 size_t count
, loff_t
*ppos
)
414 return lbs_threshold_write(TLV_TYPE_SNR_HIGH
, CMD_SUBSCRIBE_SNR_HIGH
,
415 file
, userbuf
, count
, ppos
);
418 static ssize_t
lbs_bcnmiss_read(struct file
*file
, char __user
*userbuf
,
419 size_t count
, loff_t
*ppos
)
421 return lbs_threshold_read(TLV_TYPE_BCNMISS
, CMD_SUBSCRIBE_BCNMISS
,
422 file
, userbuf
, count
, ppos
);
426 static ssize_t
lbs_bcnmiss_write(struct file
*file
, const char __user
*userbuf
,
427 size_t count
, loff_t
*ppos
)
429 return lbs_threshold_write(TLV_TYPE_BCNMISS
, CMD_SUBSCRIBE_BCNMISS
,
430 file
, userbuf
, count
, ppos
);
435 static ssize_t
lbs_rdmac_read(struct file
*file
, char __user
*userbuf
,
436 size_t count
, loff_t
*ppos
)
438 struct lbs_private
*priv
= file
->private_data
;
439 struct lbs_offset_value offval
;
442 unsigned long addr
= get_zeroed_page(GFP_KERNEL
);
443 char *buf
= (char *)addr
;
447 offval
.offset
= priv
->mac_offset
;
450 ret
= lbs_prepare_and_send_command(priv
,
451 CMD_MAC_REG_ACCESS
, 0,
452 CMD_OPTION_WAITFORRSP
, 0, &offval
);
455 pos
+= snprintf(buf
+pos
, len
-pos
, "MAC[0x%x] = 0x%08x\n",
456 priv
->mac_offset
, priv
->offsetvalue
.value
);
458 ret
= simple_read_from_buffer(userbuf
, count
, ppos
, buf
, pos
);
464 static ssize_t
lbs_rdmac_write(struct file
*file
,
465 const char __user
*userbuf
,
466 size_t count
, loff_t
*ppos
)
468 struct lbs_private
*priv
= file
->private_data
;
469 ssize_t res
, buf_size
;
470 unsigned long addr
= get_zeroed_page(GFP_KERNEL
);
471 char *buf
= (char *)addr
;
475 buf_size
= min(count
, len
- 1);
476 if (copy_from_user(buf
, userbuf
, buf_size
)) {
480 priv
->mac_offset
= simple_strtoul((char *)buf
, NULL
, 16);
487 static ssize_t
lbs_wrmac_write(struct file
*file
,
488 const char __user
*userbuf
,
489 size_t count
, loff_t
*ppos
)
492 struct lbs_private
*priv
= file
->private_data
;
493 ssize_t res
, buf_size
;
495 struct lbs_offset_value offval
;
496 unsigned long addr
= get_zeroed_page(GFP_KERNEL
);
497 char *buf
= (char *)addr
;
501 buf_size
= min(count
, len
- 1);
502 if (copy_from_user(buf
, userbuf
, buf_size
)) {
506 res
= sscanf(buf
, "%x %x", &offset
, &value
);
512 offval
.offset
= offset
;
513 offval
.value
= value
;
514 res
= lbs_prepare_and_send_command(priv
,
515 CMD_MAC_REG_ACCESS
, 1,
516 CMD_OPTION_WAITFORRSP
, 0, &offval
);
526 static ssize_t
lbs_rdbbp_read(struct file
*file
, char __user
*userbuf
,
527 size_t count
, loff_t
*ppos
)
529 struct lbs_private
*priv
= file
->private_data
;
530 struct lbs_offset_value offval
;
533 unsigned long addr
= get_zeroed_page(GFP_KERNEL
);
534 char *buf
= (char *)addr
;
538 offval
.offset
= priv
->bbp_offset
;
541 ret
= lbs_prepare_and_send_command(priv
,
542 CMD_BBP_REG_ACCESS
, 0,
543 CMD_OPTION_WAITFORRSP
, 0, &offval
);
546 pos
+= snprintf(buf
+pos
, len
-pos
, "BBP[0x%x] = 0x%08x\n",
547 priv
->bbp_offset
, priv
->offsetvalue
.value
);
549 ret
= simple_read_from_buffer(userbuf
, count
, ppos
, buf
, pos
);
556 static ssize_t
lbs_rdbbp_write(struct file
*file
,
557 const char __user
*userbuf
,
558 size_t count
, loff_t
*ppos
)
560 struct lbs_private
*priv
= file
->private_data
;
561 ssize_t res
, buf_size
;
562 unsigned long addr
= get_zeroed_page(GFP_KERNEL
);
563 char *buf
= (char *)addr
;
567 buf_size
= min(count
, len
- 1);
568 if (copy_from_user(buf
, userbuf
, buf_size
)) {
572 priv
->bbp_offset
= simple_strtoul((char *)buf
, NULL
, 16);
579 static ssize_t
lbs_wrbbp_write(struct file
*file
,
580 const char __user
*userbuf
,
581 size_t count
, loff_t
*ppos
)
584 struct lbs_private
*priv
= file
->private_data
;
585 ssize_t res
, buf_size
;
587 struct lbs_offset_value offval
;
588 unsigned long addr
= get_zeroed_page(GFP_KERNEL
);
589 char *buf
= (char *)addr
;
593 buf_size
= min(count
, len
- 1);
594 if (copy_from_user(buf
, userbuf
, buf_size
)) {
598 res
= sscanf(buf
, "%x %x", &offset
, &value
);
604 offval
.offset
= offset
;
605 offval
.value
= value
;
606 res
= lbs_prepare_and_send_command(priv
,
607 CMD_BBP_REG_ACCESS
, 1,
608 CMD_OPTION_WAITFORRSP
, 0, &offval
);
618 static ssize_t
lbs_rdrf_read(struct file
*file
, char __user
*userbuf
,
619 size_t count
, loff_t
*ppos
)
621 struct lbs_private
*priv
= file
->private_data
;
622 struct lbs_offset_value offval
;
625 unsigned long addr
= get_zeroed_page(GFP_KERNEL
);
626 char *buf
= (char *)addr
;
630 offval
.offset
= priv
->rf_offset
;
633 ret
= lbs_prepare_and_send_command(priv
,
634 CMD_RF_REG_ACCESS
, 0,
635 CMD_OPTION_WAITFORRSP
, 0, &offval
);
638 pos
+= snprintf(buf
+pos
, len
-pos
, "RF[0x%x] = 0x%08x\n",
639 priv
->rf_offset
, priv
->offsetvalue
.value
);
641 ret
= simple_read_from_buffer(userbuf
, count
, ppos
, buf
, pos
);
648 static ssize_t
lbs_rdrf_write(struct file
*file
,
649 const char __user
*userbuf
,
650 size_t count
, loff_t
*ppos
)
652 struct lbs_private
*priv
= file
->private_data
;
653 ssize_t res
, buf_size
;
654 unsigned long addr
= get_zeroed_page(GFP_KERNEL
);
655 char *buf
= (char *)addr
;
659 buf_size
= min(count
, len
- 1);
660 if (copy_from_user(buf
, userbuf
, buf_size
)) {
664 priv
->rf_offset
= simple_strtoul(buf
, NULL
, 16);
671 static ssize_t
lbs_wrrf_write(struct file
*file
,
672 const char __user
*userbuf
,
673 size_t count
, loff_t
*ppos
)
676 struct lbs_private
*priv
= file
->private_data
;
677 ssize_t res
, buf_size
;
679 struct lbs_offset_value offval
;
680 unsigned long addr
= get_zeroed_page(GFP_KERNEL
);
681 char *buf
= (char *)addr
;
685 buf_size
= min(count
, len
- 1);
686 if (copy_from_user(buf
, userbuf
, buf_size
)) {
690 res
= sscanf(buf
, "%x %x", &offset
, &value
);
696 offval
.offset
= offset
;
697 offval
.value
= value
;
698 res
= lbs_prepare_and_send_command(priv
,
699 CMD_RF_REG_ACCESS
, 1,
700 CMD_OPTION_WAITFORRSP
, 0, &offval
);
710 #define FOPS(fread, fwrite) { \
711 .owner = THIS_MODULE, \
712 .open = open_file_generic, \
717 struct lbs_debugfs_files
{
720 struct file_operations fops
;
723 static const struct lbs_debugfs_files debugfs_files
[] = {
724 { "info", 0444, FOPS(lbs_dev_info
, write_file_dummy
), },
725 { "getscantable", 0444, FOPS(lbs_getscantable
,
726 write_file_dummy
), },
727 { "sleepparams", 0644, FOPS(lbs_sleepparams_read
,
728 lbs_sleepparams_write
), },
731 static const struct lbs_debugfs_files debugfs_events_files
[] = {
732 {"low_rssi", 0644, FOPS(lbs_lowrssi_read
,
733 lbs_lowrssi_write
), },
734 {"low_snr", 0644, FOPS(lbs_lowsnr_read
,
735 lbs_lowsnr_write
), },
736 {"failure_count", 0644, FOPS(lbs_failcount_read
,
737 lbs_failcount_write
), },
738 {"beacon_missed", 0644, FOPS(lbs_bcnmiss_read
,
739 lbs_bcnmiss_write
), },
740 {"high_rssi", 0644, FOPS(lbs_highrssi_read
,
741 lbs_highrssi_write
), },
742 {"high_snr", 0644, FOPS(lbs_highsnr_read
,
743 lbs_highsnr_write
), },
746 static const struct lbs_debugfs_files debugfs_regs_files
[] = {
747 {"rdmac", 0644, FOPS(lbs_rdmac_read
, lbs_rdmac_write
), },
748 {"wrmac", 0600, FOPS(NULL
, lbs_wrmac_write
), },
749 {"rdbbp", 0644, FOPS(lbs_rdbbp_read
, lbs_rdbbp_write
), },
750 {"wrbbp", 0600, FOPS(NULL
, lbs_wrbbp_write
), },
751 {"rdrf", 0644, FOPS(lbs_rdrf_read
, lbs_rdrf_write
), },
752 {"wrrf", 0600, FOPS(NULL
, lbs_wrrf_write
), },
755 void lbs_debugfs_init(void)
758 lbs_dir
= debugfs_create_dir("lbs_wireless", NULL
);
763 void lbs_debugfs_remove(void)
766 debugfs_remove(lbs_dir
);
770 void lbs_debugfs_init_one(struct lbs_private
*priv
, struct net_device
*dev
)
773 const struct lbs_debugfs_files
*files
;
777 priv
->debugfs_dir
= debugfs_create_dir(dev
->name
, lbs_dir
);
778 if (!priv
->debugfs_dir
)
781 for (i
=0; i
<ARRAY_SIZE(debugfs_files
); i
++) {
782 files
= &debugfs_files
[i
];
783 priv
->debugfs_files
[i
] = debugfs_create_file(files
->name
,
790 priv
->events_dir
= debugfs_create_dir("subscribed_events", priv
->debugfs_dir
);
791 if (!priv
->events_dir
)
794 for (i
=0; i
<ARRAY_SIZE(debugfs_events_files
); i
++) {
795 files
= &debugfs_events_files
[i
];
796 priv
->debugfs_events_files
[i
] = debugfs_create_file(files
->name
,
803 priv
->regs_dir
= debugfs_create_dir("registers", priv
->debugfs_dir
);
807 for (i
=0; i
<ARRAY_SIZE(debugfs_regs_files
); i
++) {
808 files
= &debugfs_regs_files
[i
];
809 priv
->debugfs_regs_files
[i
] = debugfs_create_file(files
->name
,
817 lbs_debug_init(priv
);
823 void lbs_debugfs_remove_one(struct lbs_private
*priv
)
827 for(i
=0; i
<ARRAY_SIZE(debugfs_regs_files
); i
++)
828 debugfs_remove(priv
->debugfs_regs_files
[i
]);
830 debugfs_remove(priv
->regs_dir
);
832 for(i
=0; i
<ARRAY_SIZE(debugfs_events_files
); i
++)
833 debugfs_remove(priv
->debugfs_events_files
[i
]);
835 debugfs_remove(priv
->events_dir
);
837 debugfs_remove(priv
->debugfs_debug
);
839 for(i
=0; i
<ARRAY_SIZE(debugfs_files
); i
++)
840 debugfs_remove(priv
->debugfs_files
[i
]);
841 debugfs_remove(priv
->debugfs_dir
);
850 #define item_size(n) (FIELD_SIZEOF(struct lbs_private, n))
851 #define item_addr(n) (offsetof(struct lbs_private, n))
860 /* To debug any member of struct lbs_private, simply add one line here.
862 static struct debug_data items
[] = {
863 {"psmode", item_size(psmode
), item_addr(psmode
)},
864 {"psstate", item_size(psstate
), item_addr(psstate
)},
867 static int num_of_items
= ARRAY_SIZE(items
);
870 * @brief proc read function
872 * @param page pointer to buffer
873 * @param s read data starting position
876 * @param eof end of file flag
877 * @param data data to output
878 * @return number of output data
880 static ssize_t
lbs_debugfs_read(struct file
*file
, char __user
*userbuf
,
881 size_t count
, loff_t
*ppos
)
888 struct debug_data
*d
;
889 unsigned long addr
= get_zeroed_page(GFP_KERNEL
);
890 char *buf
= (char *)addr
;
896 d
= (struct debug_data
*)file
->private_data
;
898 for (i
= 0; i
< num_of_items
; i
++) {
900 val
= *((u8
*) d
[i
].addr
);
901 else if (d
[i
].size
== 2)
902 val
= *((u16
*) d
[i
].addr
);
903 else if (d
[i
].size
== 4)
904 val
= *((u32
*) d
[i
].addr
);
905 else if (d
[i
].size
== 8)
906 val
= *((u64
*) d
[i
].addr
);
908 pos
+= sprintf(p
+ pos
, "%s=%d\n", d
[i
].name
, val
);
911 res
= simple_read_from_buffer(userbuf
, count
, ppos
, p
, pos
);
918 * @brief proc write function
920 * @param f file pointer
921 * @param buf pointer to data buffer
922 * @param cnt data number to write
923 * @param data data to write
924 * @return number of data
926 static ssize_t
lbs_debugfs_write(struct file
*f
, const char __user
*buf
,
927 size_t cnt
, loff_t
*ppos
)
935 struct debug_data
*d
= (struct debug_data
*)f
->private_data
;
937 pdata
= kmalloc(cnt
, GFP_KERNEL
);
941 if (copy_from_user(pdata
, buf
, cnt
)) {
942 lbs_deb_debugfs("Copy from user failed\n");
948 for (i
= 0; i
< num_of_items
; i
++) {
950 p
= strstr(p0
, d
[i
].name
);
953 p1
= strchr(p
, '\n');
961 r
= simple_strtoul(p2
, NULL
, 0);
963 *((u8
*) d
[i
].addr
) = (u8
) r
;
964 else if (d
[i
].size
== 2)
965 *((u16
*) d
[i
].addr
) = (u16
) r
;
966 else if (d
[i
].size
== 4)
967 *((u32
*) d
[i
].addr
) = (u32
) r
;
968 else if (d
[i
].size
== 8)
969 *((u64
*) d
[i
].addr
) = (u64
) r
;
978 static const struct file_operations lbs_debug_fops
= {
979 .owner
= THIS_MODULE
,
980 .open
= open_file_generic
,
981 .write
= lbs_debugfs_write
,
982 .read
= lbs_debugfs_read
,
986 * @brief create debug proc file
988 * @param priv pointer struct lbs_private
989 * @param dev pointer net_device
992 static void lbs_debug_init(struct lbs_private
*priv
)
996 if (!priv
->debugfs_dir
)
999 for (i
= 0; i
< num_of_items
; i
++)
1000 items
[i
].addr
+= (size_t) priv
;
1002 priv
->debugfs_debug
= debugfs_create_file("debug", 0644,
1003 priv
->debugfs_dir
, &items
[0],