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 lbs_pr_info("wake parameters not configured");
158 ret = lbs_set_host_sleep(priv, 1);
160 lbs_pr_err("invalid option\n");
172 static ssize_t lbs_host_sleep_read(struct file *file, char __user *userbuf,
173 size_t count, loff_t *ppos)
175 struct lbs_private *priv = file->private_data;
178 unsigned long addr = get_zeroed_page(GFP_KERNEL);
179 char *buf = (char *)addr;
183 pos += snprintf(buf, len, "%d\n", priv->is_host_sleep_activated);
185 ret = simple_read_from_buffer(userbuf, count, ppos, buf, pos);
192 * When calling CMD_802_11_SUBSCRIBE_EVENT with CMD_ACT_GET, me might
193 * get a bunch of vendor-specific TLVs (a.k.a. IEs) back from the
194 * firmware. Here's an example:
195 * 04 01 02 00 00 00 05 01 02 00 00 00 06 01 02 00
196 * 00 00 07 01 02 00 3c 00 00 00 00 00 00 00 03 03
197 * 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
199 * The 04 01 is the TLV type (here TLV_TYPE_RSSI_LOW), 02 00 is the length,
200 * 00 00 are the data bytes of this TLV. For this TLV, their meaning is
201 * defined in mrvlietypes_thresholds
203 * This function searches in this TLV data chunk for a given TLV type
204 * and returns a pointer to the first data byte of the TLV, or to NULL
205 * if the TLV hasn't been found.
207 static void *lbs_tlv_find(uint16_t tlv_type, const uint8_t *tlv, uint16_t size)
209 struct mrvl_ie_header *tlv_h;
214 tlv_h = (struct mrvl_ie_header *) tlv;
217 if (tlv_h->type == cpu_to_le16(tlv_type))
219 length = le16_to_cpu(tlv_h->len) + sizeof(*tlv_h);
227 static ssize_t lbs_threshold_read(uint16_t tlv_type, uint16_t event_mask,
228 struct file *file, char __user *userbuf,
229 size_t count, loff_t *ppos)
231 struct cmd_ds_802_11_subscribe_event *subscribed;
232 struct mrvl_ie_thresholds *got;
233 struct lbs_private *priv = file->private_data;
241 buf = (char *)get_zeroed_page(GFP_KERNEL);
245 subscribed = kzalloc(sizeof(*subscribed), GFP_KERNEL);
251 subscribed->hdr.size = cpu_to_le16(sizeof(*subscribed));
252 subscribed->action = cpu_to_le16(CMD_ACT_GET);
254 ret = lbs_cmd_with_response(priv, CMD_802_11_SUBSCRIBE_EVENT, subscribed);
258 got = lbs_tlv_find(tlv_type, subscribed->tlv, sizeof(subscribed->tlv));
262 events = le16_to_cpu(subscribed->events);
264 pos += snprintf(buf, len, "%d %d %d\n", value, freq,
265 !!(events & event_mask));
268 ret = simple_read_from_buffer(userbuf, count, ppos, buf, pos);
274 free_page((unsigned long)buf);
279 static ssize_t lbs_threshold_write(uint16_t tlv_type, uint16_t event_mask,
281 const char __user *userbuf, size_t count,
284 struct cmd_ds_802_11_subscribe_event *events;
285 struct mrvl_ie_thresholds *tlv;
286 struct lbs_private *priv = file->private_data;
288 int value, freq, new_mask;
293 buf = (char *)get_zeroed_page(GFP_KERNEL);
297 buf_size = min(count, len - 1);
298 if (copy_from_user(buf, userbuf, buf_size)) {
302 ret = sscanf(buf, "%d %d %d", &value, &freq, &new_mask);
307 events = kzalloc(sizeof(*events), GFP_KERNEL);
313 events->hdr.size = cpu_to_le16(sizeof(*events));
314 events->action = cpu_to_le16(CMD_ACT_GET);
316 ret = lbs_cmd_with_response(priv, CMD_802_11_SUBSCRIBE_EVENT, events);
320 curr_mask = le16_to_cpu(events->events);
323 new_mask = curr_mask | event_mask;
325 new_mask = curr_mask & ~event_mask;
327 /* Now everything is set and we can send stuff down to the firmware */
329 tlv = (void *)events->tlv;
331 events->action = cpu_to_le16(CMD_ACT_SET);
332 events->events = cpu_to_le16(new_mask);
333 tlv->header.type = cpu_to_le16(tlv_type);
334 tlv->header.len = cpu_to_le16(sizeof(*tlv) - sizeof(tlv->header));
336 if (tlv_type != TLV_TYPE_BCNMISS)
339 /* The command header, the action, the event mask, and one TLV */
340 events->hdr.size = cpu_to_le16(sizeof(events->hdr) + 4 + sizeof(*tlv));
342 ret = lbs_cmd_with_response(priv, CMD_802_11_SUBSCRIBE_EVENT, events);
349 free_page((unsigned long)buf);
354 static ssize_t lbs_lowrssi_read(struct file *file, char __user *userbuf,
355 size_t count, loff_t *ppos)
357 return lbs_threshold_read(TLV_TYPE_RSSI_LOW, CMD_SUBSCRIBE_RSSI_LOW,
358 file, userbuf, count, ppos);
362 static ssize_t lbs_lowrssi_write(struct file *file, const char __user *userbuf,
363 size_t count, loff_t *ppos)
365 return lbs_threshold_write(TLV_TYPE_RSSI_LOW, CMD_SUBSCRIBE_RSSI_LOW,
366 file, userbuf, count, ppos);
370 static ssize_t lbs_lowsnr_read(struct file *file, char __user *userbuf,
371 size_t count, loff_t *ppos)
373 return lbs_threshold_read(TLV_TYPE_SNR_LOW, CMD_SUBSCRIBE_SNR_LOW,
374 file, userbuf, count, ppos);
378 static ssize_t lbs_lowsnr_write(struct file *file, const char __user *userbuf,
379 size_t count, loff_t *ppos)
381 return lbs_threshold_write(TLV_TYPE_SNR_LOW, CMD_SUBSCRIBE_SNR_LOW,
382 file, userbuf, count, ppos);
386 static ssize_t lbs_failcount_read(struct file *file, char __user *userbuf,
387 size_t count, loff_t *ppos)
389 return lbs_threshold_read(TLV_TYPE_FAILCOUNT, CMD_SUBSCRIBE_FAILCOUNT,
390 file, userbuf, count, ppos);
394 static ssize_t lbs_failcount_write(struct file *file, const char __user *userbuf,
395 size_t count, loff_t *ppos)
397 return lbs_threshold_write(TLV_TYPE_FAILCOUNT, CMD_SUBSCRIBE_FAILCOUNT,
398 file, userbuf, count, ppos);
402 static ssize_t lbs_highrssi_read(struct file *file, char __user *userbuf,
403 size_t count, loff_t *ppos)
405 return lbs_threshold_read(TLV_TYPE_RSSI_HIGH, CMD_SUBSCRIBE_RSSI_HIGH,
406 file, userbuf, count, ppos);
410 static ssize_t lbs_highrssi_write(struct file *file, const char __user *userbuf,
411 size_t count, loff_t *ppos)
413 return lbs_threshold_write(TLV_TYPE_RSSI_HIGH, CMD_SUBSCRIBE_RSSI_HIGH,
414 file, userbuf, count, ppos);
418 static ssize_t lbs_highsnr_read(struct file *file, char __user *userbuf,
419 size_t count, loff_t *ppos)
421 return lbs_threshold_read(TLV_TYPE_SNR_HIGH, CMD_SUBSCRIBE_SNR_HIGH,
422 file, userbuf, count, ppos);
426 static ssize_t lbs_highsnr_write(struct file *file, const char __user *userbuf,
427 size_t count, loff_t *ppos)
429 return lbs_threshold_write(TLV_TYPE_SNR_HIGH, CMD_SUBSCRIBE_SNR_HIGH,
430 file, userbuf, count, ppos);
433 static ssize_t lbs_bcnmiss_read(struct file *file, char __user *userbuf,
434 size_t count, loff_t *ppos)
436 return lbs_threshold_read(TLV_TYPE_BCNMISS, CMD_SUBSCRIBE_BCNMISS,
437 file, userbuf, count, ppos);
441 static ssize_t lbs_bcnmiss_write(struct file *file, const char __user *userbuf,
442 size_t count, loff_t *ppos)
444 return lbs_threshold_write(TLV_TYPE_BCNMISS, CMD_SUBSCRIBE_BCNMISS,
445 file, userbuf, count, ppos);
449 static ssize_t lbs_rdmac_read(struct file *file, char __user *userbuf,
450 size_t count, loff_t *ppos)
452 struct lbs_private *priv = file->private_data;
455 unsigned long addr = get_zeroed_page(GFP_KERNEL);
456 char *buf = (char *)addr;
462 ret = lbs_get_reg(priv, CMD_MAC_REG_ACCESS, priv->mac_offset, &val);
465 pos = snprintf(buf, len, "MAC[0x%x] = 0x%08x\n",
466 priv->mac_offset, val);
467 ret = simple_read_from_buffer(userbuf, count, ppos, buf, pos);
473 static ssize_t lbs_rdmac_write(struct file *file,
474 const char __user *userbuf,
475 size_t count, loff_t *ppos)
477 struct lbs_private *priv = file->private_data;
478 ssize_t res, buf_size;
479 unsigned long addr = get_zeroed_page(GFP_KERNEL);
480 char *buf = (char *)addr;
484 buf_size = min(count, len - 1);
485 if (copy_from_user(buf, userbuf, buf_size)) {
489 priv->mac_offset = simple_strtoul((char *)buf, NULL, 16);
496 static ssize_t lbs_wrmac_write(struct file *file,
497 const char __user *userbuf,
498 size_t count, loff_t *ppos)
501 struct lbs_private *priv = file->private_data;
502 ssize_t res, buf_size;
504 unsigned long addr = get_zeroed_page(GFP_KERNEL);
505 char *buf = (char *)addr;
509 buf_size = min(count, len - 1);
510 if (copy_from_user(buf, userbuf, buf_size)) {
514 res = sscanf(buf, "%x %x", &offset, &value);
520 res = lbs_set_reg(priv, CMD_MAC_REG_ACCESS, offset, value);
530 static ssize_t lbs_rdbbp_read(struct file *file, char __user *userbuf,
531 size_t count, loff_t *ppos)
533 struct lbs_private *priv = file->private_data;
536 unsigned long addr = get_zeroed_page(GFP_KERNEL);
537 char *buf = (char *)addr;
543 ret = lbs_get_reg(priv, CMD_BBP_REG_ACCESS, priv->bbp_offset, &val);
546 pos = snprintf(buf, len, "BBP[0x%x] = 0x%08x\n",
547 priv->bbp_offset, val);
548 ret = simple_read_from_buffer(userbuf, count, ppos, buf, pos);
555 static ssize_t lbs_rdbbp_write(struct file *file,
556 const char __user *userbuf,
557 size_t count, loff_t *ppos)
559 struct lbs_private *priv = file->private_data;
560 ssize_t res, buf_size;
561 unsigned long addr = get_zeroed_page(GFP_KERNEL);
562 char *buf = (char *)addr;
566 buf_size = min(count, len - 1);
567 if (copy_from_user(buf, userbuf, buf_size)) {
571 priv->bbp_offset = simple_strtoul((char *)buf, NULL, 16);
578 static ssize_t lbs_wrbbp_write(struct file *file,
579 const char __user *userbuf,
580 size_t count, loff_t *ppos)
583 struct lbs_private *priv = file->private_data;
584 ssize_t res, buf_size;
586 unsigned long addr = get_zeroed_page(GFP_KERNEL);
587 char *buf = (char *)addr;
591 buf_size = min(count, len - 1);
592 if (copy_from_user(buf, userbuf, buf_size)) {
596 res = sscanf(buf, "%x %x", &offset, &value);
602 res = lbs_set_reg(priv, CMD_BBP_REG_ACCESS, offset, value);
612 static ssize_t lbs_rdrf_read(struct file *file, char __user *userbuf,
613 size_t count, loff_t *ppos)
615 struct lbs_private *priv = file->private_data;
618 unsigned long addr = get_zeroed_page(GFP_KERNEL);
619 char *buf = (char *)addr;
625 ret = lbs_get_reg(priv, CMD_RF_REG_ACCESS, priv->rf_offset, &val);
628 pos = snprintf(buf, len, "RF[0x%x] = 0x%08x\n",
629 priv->rf_offset, val);
630 ret = simple_read_from_buffer(userbuf, count, ppos, buf, pos);
637 static ssize_t lbs_rdrf_write(struct file *file,
638 const char __user *userbuf,
639 size_t count, loff_t *ppos)
641 struct lbs_private *priv = file->private_data;
642 ssize_t res, buf_size;
643 unsigned long addr = get_zeroed_page(GFP_KERNEL);
644 char *buf = (char *)addr;
648 buf_size = min(count, len - 1);
649 if (copy_from_user(buf, userbuf, buf_size)) {
653 priv->rf_offset = simple_strtoul(buf, NULL, 16);
660 static ssize_t lbs_wrrf_write(struct file *file,
661 const char __user *userbuf,
662 size_t count, loff_t *ppos)
665 struct lbs_private *priv = file->private_data;
666 ssize_t res, buf_size;
668 unsigned long addr = get_zeroed_page(GFP_KERNEL);
669 char *buf = (char *)addr;
673 buf_size = min(count, len - 1);
674 if (copy_from_user(buf, userbuf, buf_size)) {
678 res = sscanf(buf, "%x %x", &offset, &value);
684 res = lbs_set_reg(priv, CMD_RF_REG_ACCESS, offset, value);
694 #define FOPS(fread, fwrite) { \
695 .owner = THIS_MODULE, \
696 .open = open_file_generic, \
699 .llseek = generic_file_llseek, \
702 struct lbs_debugfs_files {
705 struct file_operations fops;
708 static const struct lbs_debugfs_files debugfs_files[] = {
709 { "info", 0444, FOPS(lbs_dev_info, write_file_dummy), },
710 { "sleepparams", 0644, FOPS(lbs_sleepparams_read,
711 lbs_sleepparams_write), },
712 { "hostsleep", 0644, FOPS(lbs_host_sleep_read,
713 lbs_host_sleep_write), },
716 static const struct lbs_debugfs_files debugfs_events_files[] = {
717 {"low_rssi", 0644, FOPS(lbs_lowrssi_read,
718 lbs_lowrssi_write), },
719 {"low_snr", 0644, FOPS(lbs_lowsnr_read,
720 lbs_lowsnr_write), },
721 {"failure_count", 0644, FOPS(lbs_failcount_read,
722 lbs_failcount_write), },
723 {"beacon_missed", 0644, FOPS(lbs_bcnmiss_read,
724 lbs_bcnmiss_write), },
725 {"high_rssi", 0644, FOPS(lbs_highrssi_read,
726 lbs_highrssi_write), },
727 {"high_snr", 0644, FOPS(lbs_highsnr_read,
728 lbs_highsnr_write), },
731 static const struct lbs_debugfs_files debugfs_regs_files[] = {
732 {"rdmac", 0644, FOPS(lbs_rdmac_read, lbs_rdmac_write), },
733 {"wrmac", 0600, FOPS(NULL, lbs_wrmac_write), },
734 {"rdbbp", 0644, FOPS(lbs_rdbbp_read, lbs_rdbbp_write), },
735 {"wrbbp", 0600, FOPS(NULL, lbs_wrbbp_write), },
736 {"rdrf", 0644, FOPS(lbs_rdrf_read, lbs_rdrf_write), },
737 {"wrrf", 0600, FOPS(NULL, lbs_wrrf_write), },
740 void lbs_debugfs_init(void)
743 lbs_dir = debugfs_create_dir("lbs_wireless", NULL);
746 void lbs_debugfs_remove(void)
749 debugfs_remove(lbs_dir);
752 void lbs_debugfs_init_one(struct lbs_private *priv, struct net_device *dev)
755 const struct lbs_debugfs_files *files;
759 priv->debugfs_dir = debugfs_create_dir(dev->name, lbs_dir);
760 if (!priv->debugfs_dir)
763 for (i=0; i<ARRAY_SIZE(debugfs_files); i++) {
764 files = &debugfs_files[i];
765 priv->debugfs_files[i] = debugfs_create_file(files->name,
772 priv->events_dir = debugfs_create_dir("subscribed_events", priv->debugfs_dir);
773 if (!priv->events_dir)
776 for (i=0; i<ARRAY_SIZE(debugfs_events_files); i++) {
777 files = &debugfs_events_files[i];
778 priv->debugfs_events_files[i] = debugfs_create_file(files->name,
785 priv->regs_dir = debugfs_create_dir("registers", priv->debugfs_dir);
789 for (i=0; i<ARRAY_SIZE(debugfs_regs_files); i++) {
790 files = &debugfs_regs_files[i];
791 priv->debugfs_regs_files[i] = debugfs_create_file(files->name,
799 lbs_debug_init(priv);
805 void lbs_debugfs_remove_one(struct lbs_private *priv)
809 for(i=0; i<ARRAY_SIZE(debugfs_regs_files); i++)
810 debugfs_remove(priv->debugfs_regs_files[i]);
812 debugfs_remove(priv->regs_dir);
814 for(i=0; i<ARRAY_SIZE(debugfs_events_files); i++)
815 debugfs_remove(priv->debugfs_events_files[i]);
817 debugfs_remove(priv->events_dir);
819 debugfs_remove(priv->debugfs_debug);
821 for(i=0; i<ARRAY_SIZE(debugfs_files); i++)
822 debugfs_remove(priv->debugfs_files[i]);
823 debugfs_remove(priv->debugfs_dir);
832 #define item_size(n) (FIELD_SIZEOF(struct lbs_private, n))
833 #define item_addr(n) (offsetof(struct lbs_private, n))
842 /* To debug any member of struct lbs_private, simply add one line here.
844 static struct debug_data items[] = {
845 {"psmode", item_size(psmode), item_addr(psmode)},
846 {"psstate", item_size(psstate), item_addr(psstate)},
849 static int num_of_items = ARRAY_SIZE(items);
852 * @brief proc read function
854 * @param page pointer to buffer
855 * @param s read data starting position
858 * @param eof end of file flag
859 * @param data data to output
860 * @return number of output data
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 * @brief proc write function
902 * @param f file pointer
903 * @param buf pointer to data buffer
904 * @param cnt data number to write
905 * @param data data to write
906 * @return number of data
908 static ssize_t lbs_debugfs_write(struct file *f, const char __user *buf,
909 size_t cnt, loff_t *ppos)
917 struct debug_data *d = f->private_data;
919 pdata = kmalloc(cnt, GFP_KERNEL);
923 if (copy_from_user(pdata, buf, cnt)) {
924 lbs_deb_debugfs("Copy from user failed\n");
930 for (i = 0; i < num_of_items; i++) {
932 p = strstr(p0, d[i].name);
935 p1 = strchr(p, '\n');
943 r = simple_strtoul(p2, NULL, 0);
945 *((u8 *) d[i].addr) = (u8) r;
946 else if (d[i].size == 2)
947 *((u16 *) d[i].addr) = (u16) r;
948 else if (d[i].size == 4)
949 *((u32 *) d[i].addr) = (u32) r;
950 else if (d[i].size == 8)
951 *((u64 *) d[i].addr) = (u64) r;
960 static const struct file_operations lbs_debug_fops = {
961 .owner = THIS_MODULE,
962 .open = open_file_generic,
963 .write = lbs_debugfs_write,
964 .read = lbs_debugfs_read,
965 .llseek = default_llseek,
969 * @brief create debug proc file
971 * @param priv pointer struct lbs_private
972 * @param dev pointer net_device
975 static void lbs_debug_init(struct lbs_private *priv)
979 if (!priv->debugfs_dir)
982 for (i = 0; i < num_of_items; i++)
983 items[i].addr += (size_t) priv;
985 priv->debugfs_debug = debugfs_create_file("debug", 0644,
986 priv->debugfs_dir, &items[0],