1 #include <linux/dcache.h>
2 #include <linux/debugfs.h>
3 #include <linux/delay.h>
5 #include <linux/string.h>
6 #include <linux/slab.h>
12 static struct dentry *lbs_dir;
13 static char *szStates[] = {
19 static void lbs_debug_init(struct lbs_private *priv);
22 static int open_file_generic(struct inode *inode, struct file *file)
24 file->private_data = inode->i_private;
28 static ssize_t write_file_dummy(struct file *file, const char __user *buf,
29 size_t count, loff_t *ppos)
34 static const size_t len = PAGE_SIZE;
36 static ssize_t lbs_dev_info(struct file *file, char __user *userbuf,
37 size_t count, loff_t *ppos)
39 struct lbs_private *priv = file->private_data;
41 unsigned long addr = get_zeroed_page(GFP_KERNEL);
42 char *buf = (char *)addr;
47 pos += snprintf(buf+pos, len-pos, "state = %s\n",
48 szStates[priv->connect_status]);
49 pos += snprintf(buf+pos, len-pos, "region_code = %02x\n",
50 (u32) priv->regioncode);
52 res = simple_read_from_buffer(userbuf, count, ppos, buf, pos);
58 static ssize_t lbs_sleepparams_write(struct file *file,
59 const char __user *user_buf, size_t count,
62 struct lbs_private *priv = file->private_data;
63 ssize_t buf_size, ret;
64 struct sleep_params sp;
65 int p1, p2, p3, p4, p5, p6;
66 unsigned long addr = get_zeroed_page(GFP_KERNEL);
67 char *buf = (char *)addr;
71 buf_size = min(count, len - 1);
72 if (copy_from_user(buf, user_buf, buf_size)) {
76 ret = sscanf(buf, "%d %d %d %d %d %d", &p1, &p2, &p3, &p4, &p5, &p6);
83 sp.sp_stabletime = p3;
84 sp.sp_calcontrol = p4;
85 sp.sp_extsleepclk = p5;
88 ret = lbs_cmd_802_11_sleep_params(priv, CMD_ACT_SET, &sp);
99 static ssize_t lbs_sleepparams_read(struct file *file, char __user *userbuf,
100 size_t count, loff_t *ppos)
102 struct lbs_private *priv = file->private_data;
105 struct sleep_params sp;
106 unsigned long addr = get_zeroed_page(GFP_KERNEL);
107 char *buf = (char *)addr;
111 ret = lbs_cmd_802_11_sleep_params(priv, CMD_ACT_GET, &sp);
115 pos += snprintf(buf, len, "%d %d %d %d %d %d\n", sp.sp_error,
116 sp.sp_offset, sp.sp_stabletime,
117 sp.sp_calcontrol, sp.sp_extsleepclk,
120 ret = simple_read_from_buffer(userbuf, count, ppos, buf, pos);
127 static ssize_t lbs_host_sleep_write(struct file *file,
128 const char __user *user_buf, size_t count,
131 struct lbs_private *priv = file->private_data;
132 ssize_t buf_size, ret;
134 unsigned long addr = get_zeroed_page(GFP_KERNEL);
135 char *buf = (char *)addr;
139 buf_size = min(count, len - 1);
140 if (copy_from_user(buf, user_buf, buf_size)) {
144 ret = sscanf(buf, "%d", &host_sleep);
151 ret = lbs_set_host_sleep(priv, 0);
152 else if (host_sleep == 1) {
153 if (priv->wol_criteria == EHS_REMOVE_WAKEUP) {
154 netdev_info(priv->dev,
155 "wake parameters not configured\n");
159 ret = lbs_set_host_sleep(priv, 1);
161 netdev_err(priv->dev, "invalid option\n");
173 static ssize_t lbs_host_sleep_read(struct file *file, char __user *userbuf,
174 size_t count, loff_t *ppos)
176 struct lbs_private *priv = file->private_data;
179 unsigned long addr = get_zeroed_page(GFP_KERNEL);
180 char *buf = (char *)addr;
184 pos += snprintf(buf, len, "%d\n", priv->is_host_sleep_activated);
186 ret = simple_read_from_buffer(userbuf, count, ppos, buf, pos);
193 * When calling CMD_802_11_SUBSCRIBE_EVENT with CMD_ACT_GET, me might
194 * get a bunch of vendor-specific TLVs (a.k.a. IEs) back from the
195 * firmware. Here's an example:
196 * 04 01 02 00 00 00 05 01 02 00 00 00 06 01 02 00
197 * 00 00 07 01 02 00 3c 00 00 00 00 00 00 00 03 03
198 * 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
200 * The 04 01 is the TLV type (here TLV_TYPE_RSSI_LOW), 02 00 is the length,
201 * 00 00 are the data bytes of this TLV. For this TLV, their meaning is
202 * defined in mrvlietypes_thresholds
204 * This function searches in this TLV data chunk for a given TLV type
205 * and returns a pointer to the first data byte of the TLV, or to NULL
206 * if the TLV hasn't been found.
208 static void *lbs_tlv_find(uint16_t tlv_type, const uint8_t *tlv, uint16_t size)
210 struct mrvl_ie_header *tlv_h;
215 tlv_h = (struct mrvl_ie_header *) tlv;
218 if (tlv_h->type == cpu_to_le16(tlv_type))
220 length = le16_to_cpu(tlv_h->len) + sizeof(*tlv_h);
228 static ssize_t lbs_threshold_read(uint16_t tlv_type, uint16_t event_mask,
229 struct file *file, char __user *userbuf,
230 size_t count, loff_t *ppos)
232 struct cmd_ds_802_11_subscribe_event *subscribed;
233 struct mrvl_ie_thresholds *got;
234 struct lbs_private *priv = file->private_data;
242 buf = (char *)get_zeroed_page(GFP_KERNEL);
246 subscribed = kzalloc(sizeof(*subscribed), GFP_KERNEL);
252 subscribed->hdr.size = cpu_to_le16(sizeof(*subscribed));
253 subscribed->action = cpu_to_le16(CMD_ACT_GET);
255 ret = lbs_cmd_with_response(priv, CMD_802_11_SUBSCRIBE_EVENT, subscribed);
259 got = lbs_tlv_find(tlv_type, subscribed->tlv, sizeof(subscribed->tlv));
263 events = le16_to_cpu(subscribed->events);
265 pos += snprintf(buf, len, "%d %d %d\n", value, freq,
266 !!(events & event_mask));
269 ret = simple_read_from_buffer(userbuf, count, ppos, buf, pos);
275 free_page((unsigned long)buf);
280 static ssize_t lbs_threshold_write(uint16_t tlv_type, uint16_t event_mask,
282 const char __user *userbuf, size_t count,
285 struct cmd_ds_802_11_subscribe_event *events;
286 struct mrvl_ie_thresholds *tlv;
287 struct lbs_private *priv = file->private_data;
289 int value, freq, new_mask;
294 buf = (char *)get_zeroed_page(GFP_KERNEL);
298 buf_size = min(count, len - 1);
299 if (copy_from_user(buf, userbuf, buf_size)) {
303 ret = sscanf(buf, "%d %d %d", &value, &freq, &new_mask);
308 events = kzalloc(sizeof(*events), GFP_KERNEL);
314 events->hdr.size = cpu_to_le16(sizeof(*events));
315 events->action = cpu_to_le16(CMD_ACT_GET);
317 ret = lbs_cmd_with_response(priv, CMD_802_11_SUBSCRIBE_EVENT, events);
321 curr_mask = le16_to_cpu(events->events);
324 new_mask = curr_mask | event_mask;
326 new_mask = curr_mask & ~event_mask;
328 /* Now everything is set and we can send stuff down to the firmware */
330 tlv = (void *)events->tlv;
332 events->action = cpu_to_le16(CMD_ACT_SET);
333 events->events = cpu_to_le16(new_mask);
334 tlv->header.type = cpu_to_le16(tlv_type);
335 tlv->header.len = cpu_to_le16(sizeof(*tlv) - sizeof(tlv->header));
337 if (tlv_type != TLV_TYPE_BCNMISS)
340 /* The command header, the action, the event mask, and one TLV */
341 events->hdr.size = cpu_to_le16(sizeof(events->hdr) + 4 + sizeof(*tlv));
343 ret = lbs_cmd_with_response(priv, CMD_802_11_SUBSCRIBE_EVENT, events);
350 free_page((unsigned long)buf);
355 static ssize_t lbs_lowrssi_read(struct file *file, char __user *userbuf,
356 size_t count, loff_t *ppos)
358 return lbs_threshold_read(TLV_TYPE_RSSI_LOW, CMD_SUBSCRIBE_RSSI_LOW,
359 file, userbuf, count, ppos);
363 static ssize_t lbs_lowrssi_write(struct file *file, const char __user *userbuf,
364 size_t count, loff_t *ppos)
366 return lbs_threshold_write(TLV_TYPE_RSSI_LOW, CMD_SUBSCRIBE_RSSI_LOW,
367 file, userbuf, count, ppos);
371 static ssize_t lbs_lowsnr_read(struct file *file, char __user *userbuf,
372 size_t count, loff_t *ppos)
374 return lbs_threshold_read(TLV_TYPE_SNR_LOW, CMD_SUBSCRIBE_SNR_LOW,
375 file, userbuf, count, ppos);
379 static ssize_t lbs_lowsnr_write(struct file *file, const char __user *userbuf,
380 size_t count, loff_t *ppos)
382 return lbs_threshold_write(TLV_TYPE_SNR_LOW, CMD_SUBSCRIBE_SNR_LOW,
383 file, userbuf, count, ppos);
387 static ssize_t lbs_failcount_read(struct file *file, char __user *userbuf,
388 size_t count, loff_t *ppos)
390 return lbs_threshold_read(TLV_TYPE_FAILCOUNT, CMD_SUBSCRIBE_FAILCOUNT,
391 file, userbuf, count, ppos);
395 static ssize_t lbs_failcount_write(struct file *file, const char __user *userbuf,
396 size_t count, loff_t *ppos)
398 return lbs_threshold_write(TLV_TYPE_FAILCOUNT, CMD_SUBSCRIBE_FAILCOUNT,
399 file, userbuf, count, ppos);
403 static ssize_t lbs_highrssi_read(struct file *file, char __user *userbuf,
404 size_t count, loff_t *ppos)
406 return lbs_threshold_read(TLV_TYPE_RSSI_HIGH, CMD_SUBSCRIBE_RSSI_HIGH,
407 file, userbuf, count, ppos);
411 static ssize_t lbs_highrssi_write(struct file *file, const char __user *userbuf,
412 size_t count, loff_t *ppos)
414 return lbs_threshold_write(TLV_TYPE_RSSI_HIGH, CMD_SUBSCRIBE_RSSI_HIGH,
415 file, userbuf, count, ppos);
419 static ssize_t lbs_highsnr_read(struct file *file, char __user *userbuf,
420 size_t count, loff_t *ppos)
422 return lbs_threshold_read(TLV_TYPE_SNR_HIGH, CMD_SUBSCRIBE_SNR_HIGH,
423 file, userbuf, count, ppos);
427 static ssize_t lbs_highsnr_write(struct file *file, const char __user *userbuf,
428 size_t count, loff_t *ppos)
430 return lbs_threshold_write(TLV_TYPE_SNR_HIGH, CMD_SUBSCRIBE_SNR_HIGH,
431 file, userbuf, count, ppos);
434 static ssize_t lbs_bcnmiss_read(struct file *file, char __user *userbuf,
435 size_t count, loff_t *ppos)
437 return lbs_threshold_read(TLV_TYPE_BCNMISS, CMD_SUBSCRIBE_BCNMISS,
438 file, userbuf, count, ppos);
442 static ssize_t lbs_bcnmiss_write(struct file *file, const char __user *userbuf,
443 size_t count, loff_t *ppos)
445 return lbs_threshold_write(TLV_TYPE_BCNMISS, CMD_SUBSCRIBE_BCNMISS,
446 file, userbuf, count, ppos);
450 static ssize_t lbs_rdmac_read(struct file *file, char __user *userbuf,
451 size_t count, loff_t *ppos)
453 struct lbs_private *priv = file->private_data;
456 unsigned long addr = get_zeroed_page(GFP_KERNEL);
457 char *buf = (char *)addr;
463 ret = lbs_get_reg(priv, CMD_MAC_REG_ACCESS, priv->mac_offset, &val);
466 pos = snprintf(buf, len, "MAC[0x%x] = 0x%08x\n",
467 priv->mac_offset, val);
468 ret = simple_read_from_buffer(userbuf, count, ppos, buf, pos);
474 static ssize_t lbs_rdmac_write(struct file *file,
475 const char __user *userbuf,
476 size_t count, loff_t *ppos)
478 struct lbs_private *priv = file->private_data;
479 ssize_t res, buf_size;
480 unsigned long addr = get_zeroed_page(GFP_KERNEL);
481 char *buf = (char *)addr;
485 buf_size = min(count, len - 1);
486 if (copy_from_user(buf, userbuf, buf_size)) {
490 priv->mac_offset = simple_strtoul((char *)buf, NULL, 16);
497 static ssize_t lbs_wrmac_write(struct file *file,
498 const char __user *userbuf,
499 size_t count, loff_t *ppos)
502 struct lbs_private *priv = file->private_data;
503 ssize_t res, buf_size;
505 unsigned long addr = get_zeroed_page(GFP_KERNEL);
506 char *buf = (char *)addr;
510 buf_size = min(count, len - 1);
511 if (copy_from_user(buf, userbuf, buf_size)) {
515 res = sscanf(buf, "%x %x", &offset, &value);
521 res = lbs_set_reg(priv, CMD_MAC_REG_ACCESS, offset, value);
531 static ssize_t lbs_rdbbp_read(struct file *file, char __user *userbuf,
532 size_t count, loff_t *ppos)
534 struct lbs_private *priv = file->private_data;
537 unsigned long addr = get_zeroed_page(GFP_KERNEL);
538 char *buf = (char *)addr;
544 ret = lbs_get_reg(priv, CMD_BBP_REG_ACCESS, priv->bbp_offset, &val);
547 pos = snprintf(buf, len, "BBP[0x%x] = 0x%08x\n",
548 priv->bbp_offset, val);
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 unsigned long addr = get_zeroed_page(GFP_KERNEL);
588 char *buf = (char *)addr;
592 buf_size = min(count, len - 1);
593 if (copy_from_user(buf, userbuf, buf_size)) {
597 res = sscanf(buf, "%x %x", &offset, &value);
603 res = lbs_set_reg(priv, CMD_BBP_REG_ACCESS, offset, value);
613 static ssize_t lbs_rdrf_read(struct file *file, char __user *userbuf,
614 size_t count, loff_t *ppos)
616 struct lbs_private *priv = file->private_data;
619 unsigned long addr = get_zeroed_page(GFP_KERNEL);
620 char *buf = (char *)addr;
626 ret = lbs_get_reg(priv, CMD_RF_REG_ACCESS, priv->rf_offset, &val);
629 pos = snprintf(buf, len, "RF[0x%x] = 0x%08x\n",
630 priv->rf_offset, val);
631 ret = simple_read_from_buffer(userbuf, count, ppos, buf, pos);
638 static ssize_t lbs_rdrf_write(struct file *file,
639 const char __user *userbuf,
640 size_t count, loff_t *ppos)
642 struct lbs_private *priv = file->private_data;
643 ssize_t res, buf_size;
644 unsigned long addr = get_zeroed_page(GFP_KERNEL);
645 char *buf = (char *)addr;
649 buf_size = min(count, len - 1);
650 if (copy_from_user(buf, userbuf, buf_size)) {
654 priv->rf_offset = simple_strtoul(buf, NULL, 16);
661 static ssize_t lbs_wrrf_write(struct file *file,
662 const char __user *userbuf,
663 size_t count, loff_t *ppos)
666 struct lbs_private *priv = file->private_data;
667 ssize_t res, buf_size;
669 unsigned long addr = get_zeroed_page(GFP_KERNEL);
670 char *buf = (char *)addr;
674 buf_size = min(count, len - 1);
675 if (copy_from_user(buf, userbuf, buf_size)) {
679 res = sscanf(buf, "%x %x", &offset, &value);
685 res = lbs_set_reg(priv, CMD_RF_REG_ACCESS, offset, value);
695 #define FOPS(fread, fwrite) { \
696 .owner = THIS_MODULE, \
697 .open = open_file_generic, \
700 .llseek = generic_file_llseek, \
703 struct lbs_debugfs_files {
706 struct file_operations fops;
709 static const struct lbs_debugfs_files debugfs_files[] = {
710 { "info", 0444, FOPS(lbs_dev_info, write_file_dummy), },
711 { "sleepparams", 0644, FOPS(lbs_sleepparams_read,
712 lbs_sleepparams_write), },
713 { "hostsleep", 0644, FOPS(lbs_host_sleep_read,
714 lbs_host_sleep_write), },
717 static const struct lbs_debugfs_files debugfs_events_files[] = {
718 {"low_rssi", 0644, FOPS(lbs_lowrssi_read,
719 lbs_lowrssi_write), },
720 {"low_snr", 0644, FOPS(lbs_lowsnr_read,
721 lbs_lowsnr_write), },
722 {"failure_count", 0644, FOPS(lbs_failcount_read,
723 lbs_failcount_write), },
724 {"beacon_missed", 0644, FOPS(lbs_bcnmiss_read,
725 lbs_bcnmiss_write), },
726 {"high_rssi", 0644, FOPS(lbs_highrssi_read,
727 lbs_highrssi_write), },
728 {"high_snr", 0644, FOPS(lbs_highsnr_read,
729 lbs_highsnr_write), },
732 static const struct lbs_debugfs_files debugfs_regs_files[] = {
733 {"rdmac", 0644, FOPS(lbs_rdmac_read, lbs_rdmac_write), },
734 {"wrmac", 0600, FOPS(NULL, lbs_wrmac_write), },
735 {"rdbbp", 0644, FOPS(lbs_rdbbp_read, lbs_rdbbp_write), },
736 {"wrbbp", 0600, FOPS(NULL, lbs_wrbbp_write), },
737 {"rdrf", 0644, FOPS(lbs_rdrf_read, lbs_rdrf_write), },
738 {"wrrf", 0600, FOPS(NULL, lbs_wrrf_write), },
741 void lbs_debugfs_init(void)
744 lbs_dir = debugfs_create_dir("lbs_wireless", NULL);
747 void lbs_debugfs_remove(void)
750 debugfs_remove(lbs_dir);
753 void lbs_debugfs_init_one(struct lbs_private *priv, struct net_device *dev)
756 const struct lbs_debugfs_files *files;
760 priv->debugfs_dir = debugfs_create_dir(dev->name, lbs_dir);
761 if (!priv->debugfs_dir)
764 for (i=0; i<ARRAY_SIZE(debugfs_files); i++) {
765 files = &debugfs_files[i];
766 priv->debugfs_files[i] = debugfs_create_file(files->name,
773 priv->events_dir = debugfs_create_dir("subscribed_events", priv->debugfs_dir);
774 if (!priv->events_dir)
777 for (i=0; i<ARRAY_SIZE(debugfs_events_files); i++) {
778 files = &debugfs_events_files[i];
779 priv->debugfs_events_files[i] = debugfs_create_file(files->name,
786 priv->regs_dir = debugfs_create_dir("registers", priv->debugfs_dir);
790 for (i=0; i<ARRAY_SIZE(debugfs_regs_files); i++) {
791 files = &debugfs_regs_files[i];
792 priv->debugfs_regs_files[i] = debugfs_create_file(files->name,
800 lbs_debug_init(priv);
806 void lbs_debugfs_remove_one(struct lbs_private *priv)
810 for(i=0; i<ARRAY_SIZE(debugfs_regs_files); i++)
811 debugfs_remove(priv->debugfs_regs_files[i]);
813 debugfs_remove(priv->regs_dir);
815 for(i=0; i<ARRAY_SIZE(debugfs_events_files); i++)
816 debugfs_remove(priv->debugfs_events_files[i]);
818 debugfs_remove(priv->events_dir);
820 debugfs_remove(priv->debugfs_debug);
822 for(i=0; i<ARRAY_SIZE(debugfs_files); i++)
823 debugfs_remove(priv->debugfs_files[i]);
824 debugfs_remove(priv->debugfs_dir);
833 #define item_size(n) (FIELD_SIZEOF(struct lbs_private, n))
834 #define item_addr(n) (offsetof(struct lbs_private, n))
843 /* To debug any member of struct lbs_private, simply add one line here.
845 static struct debug_data items[] = {
846 {"psmode", item_size(psmode), item_addr(psmode)},
847 {"psstate", item_size(psstate), item_addr(psstate)},
850 static int num_of_items = ARRAY_SIZE(items);
853 * lbs_debugfs_read - proc read function
855 * @file: file to read
856 * @userbuf: pointer to buffer
857 * @count: number of bytes to read
858 * @ppos: read data starting position
860 * returns: amount of data read or negative error code
862 static ssize_t lbs_debugfs_read(struct file *file, char __user *userbuf,
863 size_t count, loff_t *ppos)
870 struct debug_data *d;
871 unsigned long addr = get_zeroed_page(GFP_KERNEL);
872 char *buf = (char *)addr;
878 d = file->private_data;
880 for (i = 0; i < num_of_items; i++) {
882 val = *((u8 *) d[i].addr);
883 else if (d[i].size == 2)
884 val = *((u16 *) d[i].addr);
885 else if (d[i].size == 4)
886 val = *((u32 *) d[i].addr);
887 else if (d[i].size == 8)
888 val = *((u64 *) d[i].addr);
890 pos += sprintf(p + pos, "%s=%d\n", d[i].name, val);
893 res = simple_read_from_buffer(userbuf, count, ppos, p, pos);
900 * lbs_debugfs_write - proc write function
903 * @buf: pointer to data buffer
904 * @cnt: data number to write
905 * @ppos: file position
907 * returns: amount of data written
909 static ssize_t lbs_debugfs_write(struct file *f, const char __user *buf,
910 size_t cnt, loff_t *ppos)
918 struct debug_data *d = f->private_data;
920 pdata = kmalloc(cnt, GFP_KERNEL);
924 if (copy_from_user(pdata, buf, cnt)) {
925 lbs_deb_debugfs("Copy from user failed\n");
931 for (i = 0; i < num_of_items; i++) {
933 p = strstr(p0, d[i].name);
936 p1 = strchr(p, '\n');
944 r = simple_strtoul(p2, NULL, 0);
946 *((u8 *) d[i].addr) = (u8) r;
947 else if (d[i].size == 2)
948 *((u16 *) d[i].addr) = (u16) r;
949 else if (d[i].size == 4)
950 *((u32 *) d[i].addr) = (u32) r;
951 else if (d[i].size == 8)
952 *((u64 *) d[i].addr) = (u64) r;
961 static const struct file_operations lbs_debug_fops = {
962 .owner = THIS_MODULE,
963 .open = open_file_generic,
964 .write = lbs_debugfs_write,
965 .read = lbs_debugfs_read,
966 .llseek = default_llseek,
970 * lbs_debug_init - create debug proc file
972 * @priv: pointer to &struct lbs_private
976 static void lbs_debug_init(struct lbs_private *priv)
980 if (!priv->debugfs_dir)
983 for (i = 0; i < num_of_items; i++)
984 items[i].addr += (size_t) priv;
986 priv->debugfs_debug = debugfs_create_file("debug", 0644,
987 priv->debugfs_dir, &items[0],